Every age of comics has special 1st appearances. The 70s and early 80s are no exception as you can see below.

Kull the Conqueror 1 1st Comic Book Appearance 1971 Grade 30 WH
Kull the Conqueror 1 1st Comic Book Appearance 1971 Grade 30 WH
$9.99
Time Remaining: 31m
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Flash 298 cgc 96 1st appearance of new Shade 1981 DC movie TV Firestorm WHITE p
Flash 298 cgc 96 1st appearance of new Shade 1981 DC movie TV Firestorm WHITE p
$39.99
Time Remaining: 1h 24m
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Preacher 21 CGC 98 1st Appearance Allfather DC Vertigo
Preacher 21 CGC 98 1st Appearance Allfather DC Vertigo
$93.75
Time Remaining: 1h 36m
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Daredevil  42 VG 40 1st Appearance of the Jester Marvel
Daredevil 42 VG 40 1st Appearance of the Jester Marvel
$9.99
Time Remaining: 1h 58m
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The X Men 131 1st appearance of White Queen Dark Phoenix Claremont Byrne WOW
The X Men 131 1st appearance of White Queen Dark Phoenix Claremont Byrne WOW
$29.00
Time Remaining: 2h 4m
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B39 1983 Journey 1 NM 1st Appearance Wolverine MacAlistaire Aardvark Vanaheim
B39 1983 Journey 1 NM 1st Appearance Wolverine MacAlistaire Aardvark Vanaheim
$18.99
Time Remaining: 2h 29m
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X Men 266 CGC 96 1st Full Appearance Gambit
X Men 266 CGC 96 1st Full Appearance Gambit
$215.00
Time Remaining: 2h 38m
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The Avengers 158 April 1977 1st appearance Graviton Jim Shooter scripts begin
The Avengers 158 April 1977 1st appearance Graviton Jim Shooter scripts begin
$20.00
Time Remaining: 3h 10m
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The New Teen Titans2 CGC 94 SS PerezWhite Pages1st appearance of Deathstroke
The New Teen Titans2 CGC 94 SS PerezWhite Pages1st appearance of Deathstroke
$1,000.00
Time Remaining: 3h 10m
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OMEGA 3 CGC 98 MINT WHITE PAGES 1ST APPEARANCE OF LOBO 1983 DC COMICS
OMEGA 3 CGC 98 MINT WHITE PAGES 1ST APPEARANCE OF LOBO 1983 DC COMICS
$189.99
Time Remaining: 4h 9m
Captain America 254Bronze Age Marvel 1st appearance of Union Jack III
Captain America 254Bronze Age Marvel 1st appearance of Union Jack III
$5.00
Time Remaining: 4h 15m
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AMAZING SPIDER MAN 127 3RD VULTURES 1ST APPEARANCE
AMAZING SPIDER MAN 127 3RD VULTURES 1ST APPEARANCE
$13.49
Time Remaining: 4h 21m
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BATMAN 361 BRONZE AGE DC KEY ISSUE 1ST APPEARANCE OF HARVEY BULLOCK
BATMAN 361 BRONZE AGE DC KEY ISSUE 1ST APPEARANCE OF HARVEY BULLOCK
$35.99
Time Remaining: 4h 21m
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IRON MAN 120 KEY ISSUE 1st APPEARANCE OF JUSTIN HAMMER 1979
IRON MAN 120 KEY ISSUE 1st APPEARANCE OF JUSTIN HAMMER 1979
$8.99
Time Remaining: 4h 21m
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NEW CASE Conan the Barbarian 23 CBCS Graded 70 1st Red Sonja Appearance CGC
NEW CASE Conan the Barbarian 23 CBCS Graded 70 1st Red Sonja Appearance CGC
$125.00
Time Remaining: 4h 28m
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1983 Marvel Comics Amazing Spider Man 238 1st Appearance Of Hobgoblin no Tattooz
1983 Marvel Comics Amazing Spider Man 238 1st Appearance Of Hobgoblin no Tattooz
$40.00
Time Remaining: 4h 37m
DAREDEVIL 111 CGC 96 OW WH PAGES 1ST APPEARANCE OF THE SILVER SAMURAI
DAREDEVIL 111 CGC 96 OW WH PAGES 1ST APPEARANCE OF THE SILVER SAMURAI
$375.00
Time Remaining: 4h 50m
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DC Comics BATMAN 359 1st Killer Croc Cover 2nd Appearance NM 92
DC Comics BATMAN 359 1st Killer Croc Cover 2nd Appearance NM 92
$69.95
Time Remaining: 4h 50m
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Firestorm 1 FN the nuclear man 1st appearance march 1978 dc comics bronze
Firestorm 1 FN the nuclear man 1st appearance march 1978 dc comics bronze
$49.99
Time Remaining: 4h 55m
Buy It Now for only: $49.99
The New Teen Titans 26 1st Appearance Terra NM 92 DC
The New Teen Titans 26 1st Appearance Terra NM 92 DC
$9.99
Time Remaining: 5h 1m
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MARVEL SPOTLIGHT 32 1977 1st appearance of SPIDER WOMAN high grade unres
MARVEL SPOTLIGHT 32 1977 1st appearance of SPIDER WOMAN high grade unres
$99.00
Time Remaining: 5h 15m
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LUKE CAGE HERO FOR HIRE 1 CGC 80 ORIGIN  1st APPEARANCE 1972 WHITE PAGES
LUKE CAGE HERO FOR HIRE 1 CGC 80 ORIGIN 1st APPEARANCE 1972 WHITE PAGES
$377.50
Time Remaining: 5h 46m
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THE AVENGERS ANNUAL 10 90 1ST APPEARANCE OF ROGUE HUGE KEY
THE AVENGERS ANNUAL 10 90 1ST APPEARANCE OF ROGUE HUGE KEY
$74.97
Time Remaining: 6h
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THE AVENGERS ANNUAL 10 90 1ST APPEARANCE OF ROGUE KEY ISSUE
THE AVENGERS ANNUAL 10 90 1ST APPEARANCE OF ROGUE KEY ISSUE
$74.97
Time Remaining: 6h
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Spider Man and His Amazing Friends 1 CGC 94 1st appearance Firestar FREE SHIP
Spider Man and His Amazing Friends 1 CGC 94 1st appearance Firestar FREE SHIP
$95.00
Time Remaining: 6h 10m
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Supergirl 1st Series no7 Zatanna Appearance VG 120916DBC
Supergirl 1st Series no7 Zatanna Appearance VG 120916DBC
$14.99
Time Remaining: 6h 38m
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THE SHADOW 1 CGC 94 1ST DC APPEARANCE CREAM OW PAGES BRONZE AGE
THE SHADOW 1 CGC 94 1ST DC APPEARANCE CREAM OW PAGES BRONZE AGE
$120.00
Time Remaining: 6h 43m
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MICRONAUTS 8 RARE 1ST APPEARANCE OF CAPTAIN UNIVERSE SEE MY OTHER KEYS
MICRONAUTS 8 RARE 1ST APPEARANCE OF CAPTAIN UNIVERSE SEE MY OTHER KEYS
$20.99
Time Remaining: 6h 49m
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Marvel Feature 1 1971 Key 1st Appearance  Origin The Defenders CGC 80 FL280
Marvel Feature 1 1971 Key 1st Appearance Origin The Defenders CGC 80 FL280
$279.95
Time Remaining: 6h 56m
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Conan 1 CGC 90 White Pages Origin and 1st appearance Conan and King Kull Key
Conan 1 CGC 90 White Pages Origin and 1st appearance Conan and King Kull Key
$365.00 (1 Bid)
Time Remaining: 7h 9m
Batman 237 1st appearance of Reaper December 1971 DC Comics
Batman 237 1st appearance of Reaper December 1971 DC Comics
$160.00
Time Remaining: 7h 18m
Buy It Now for only: $160.00
Doorway To Nightmare 1 First 1st Appearance Of Madame Xanadu 1978 DC comics FN
Doorway To Nightmare 1 First 1st Appearance Of Madame Xanadu 1978 DC comics FN
$14.99
Time Remaining: 7h 25m
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Man Thing 13 1975 CBCS Graded 98 1st Appearance Captain Fate Not CGC
Man Thing 13 1975 CBCS Graded 98 1st Appearance Captain Fate Not CGC
$249.95
Time Remaining: 7h 46m
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NOVA 1 VF+ 85  1st appearance of Nova
NOVA 1 VF+ 85 1st appearance of Nova
$69.99
Time Remaining: 8h 3m
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1973 JUNGLE ACTION 6 1st appearance KILLMONGER Black Panther movie
1973 JUNGLE ACTION 6 1st appearance KILLMONGER Black Panther movie
$150.00
Time Remaining: 8h 13m
Buy It Now for only: $150.00
The Savage She Hulk 1 1st appearance  origin Marvel Comics 1979
The Savage She Hulk 1 1st appearance origin Marvel Comics 1979
$15.50 (5 Bids)
Time Remaining: 8h 14m
OMEGA THE UNKNOWN 1 1ST APPEARANCE MARVEL 1976 F+ OR BETTER GERBER JIM MOONEY
OMEGA THE UNKNOWN 1 1ST APPEARANCE MARVEL 1976 F+ OR BETTER GERBER JIM MOONEY
$9.00
Time Remaining: 8h 15m
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NEW TEEN TITANS 16 DC Comics 1982 1st appearance of CAPTAIN CARROT VF
NEW TEEN TITANS 16 DC Comics 1982 1st appearance of CAPTAIN CARROT VF
$10.99
Time Remaining: 8h 18m
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SKULL THE SLAYER 1 MARVEL 1975 1ST APPEARANCE WARP TO PREHISTORIC TIME VF
SKULL THE SLAYER 1 MARVEL 1975 1ST APPEARANCE WARP TO PREHISTORIC TIME VF
$10.00
Time Remaining: 8h 23m
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MARVEL SPOTLIGHT 1 Origin  1st Appearance of RED WOLF Neal Adams Cover 1971
MARVEL SPOTLIGHT 1 Origin 1st Appearance of RED WOLF Neal Adams Cover 1971
$19.93
Time Remaining: 8h 27m
Buy It Now for only: $19.93