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

Ms Marvel 16 1st Appearance of Mystiquekey CGC 90 1978unpressed
Ms Marvel 16 1st Appearance of Mystiquekey CGC 90 1978unpressed
$325.00
Time Remaining: 35m
Buy It Now for only: $325.00
Fantastic Four 44 FN 11 65 1st appearance Gorgon Inhumans
Fantastic Four 44 FN 11 65 1st appearance Gorgon Inhumans
$21.50 (20 Bids)
Time Remaining: 41m
X MEN 99 1st APPEARANCE BLACK TOM CASSIDY UNCANNY MARVEL 1963 1976 DEATHSTAR
X MEN 99 1st APPEARANCE BLACK TOM CASSIDY UNCANNY MARVEL 1963 1976 DEATHSTAR
$69.99
Time Remaining: 50m
Buy It Now for only: $69.99
The Eternals 5 First 1st Appearance of Makkari Jack Kirby 1976 Marvel Comics VF
The Eternals 5 First 1st Appearance of Makkari Jack Kirby 1976 Marvel Comics VF
$20.00
Time Remaining: 53m
Buy It Now for only: $20.00
Shade the Changing Man 1 Jun Jul 1977 DC 1ST Appearance HIGH GRADE LOOK
Shade the Changing Man 1 Jun Jul 1977 DC 1ST Appearance HIGH GRADE LOOK
$26.99
Time Remaining: 54m
Buy It Now for only: $26.99
HERO FOR HIRE 1 CGC 94 WHITE PAGE BRONZE MEGA KEY LUKE CAGE 1st APPEARANCE
HERO FOR HIRE 1 CGC 94 WHITE PAGE BRONZE MEGA KEY LUKE CAGE 1st APPEARANCE
$1,195.00
Time Remaining: 1h 8m
Buy It Now for only: $1,650.00
Supermans Pal Jimmy Olsen 133 1st Appearance Morgan Edge 1970 DC Comics
Supermans Pal Jimmy Olsen 133 1st Appearance Morgan Edge 1970 DC Comics
$27.95
Time Remaining: 1h 15m
Buy It Now for only: $27.95
Supermans Pal Jimmy Olsen 134 1st Appearance of Darkseid 1970 DC Comics
Supermans Pal Jimmy Olsen 134 1st Appearance of Darkseid 1970 DC Comics
$114.95
Time Remaining: 1h 17m
Buy It Now for only: $114.95
1980 MARVEL THE UNCANNY X MEN 130 1ST APPEARANCE OF DAZZLER
1980 MARVEL THE UNCANNY X MEN 130 1ST APPEARANCE OF DAZZLER
$55.00 (18 Bids)
Time Remaining: 1h 29m
DAREDEVIL 197 257 Punisher 1st Appearance Yuriko Oyama LADY DEATHSTRIKE MARVEL
DAREDEVIL 197 257 Punisher 1st Appearance Yuriko Oyama LADY DEATHSTRIKE MARVEL
$8.95
Time Remaining: 1h 37m
X Men 169 NM 94 high grade 1st appearance Callisto Morlocks 1983 create a lot
X Men 169 NM 94 high grade 1st appearance Callisto Morlocks 1983 create a lot
$27.99
Time Remaining: 1h 39m
Buy It Now for only: $27.99
Amazing Spider Man 209 CGC 94 OW W Pages 1st Appearance  Origin of Calypso
Amazing Spider Man 209 CGC 94 OW W Pages 1st Appearance Origin of Calypso
$10.50 (2 Bids)
Time Remaining: 1h 41m
ETERNALS 3 1976 1ST APPEARANCE SERSI GUARDIANS OF THE GALAXY THANOS MARVEL
ETERNALS 3 1976 1ST APPEARANCE SERSI GUARDIANS OF THE GALAXY THANOS MARVEL
$54.99
Time Remaining: 1h 47m
Buy It Now for only: $54.99
Black Lightning 1 CGC 98 DC 1977 1st Appearance Key Bronze Origin H7 157 cm
Black Lightning 1 CGC 98 DC 1977 1st Appearance Key Bronze Origin H7 157 cm
$995.00
Time Remaining: 1h 54m
Buy It Now for only: $995.00
Eternals 11 1977 1st Appearance Druig VF 80
Eternals 11 1977 1st Appearance Druig VF 80
$19.99
Time Remaining: 1h 55m
Buy It Now for only: $19.99
Shade The Changing Man 1 1977 DC Comics 1st Appearance
Shade The Changing Man 1 1977 DC Comics 1st Appearance
$3.95
Time Remaining: 2h 1m
Buy It Now for only: $3.95
The Amazing Spider man 209 1st Appearance  Origin of Calypso
The Amazing Spider man 209 1st Appearance Origin of Calypso
$11.99
Time Remaining: 2h 10m
Buy It Now for only: $17.00
MARVEL SPOTLOGHT on WEREWOLF BY NIGHT 2 1st Appearance Key Collectors Issue
MARVEL SPOTLOGHT on WEREWOLF BY NIGHT 2 1st Appearance Key Collectors Issue
$191.50 (12 Bids)
Time Remaining: 2h 28m
STAR WARSDROIDS 1 AWESOME 1ST APPEARANCE JOST ELLEN  GOVERNOR KUGG
STAR WARSDROIDS 1 AWESOME 1ST APPEARANCE JOST ELLEN GOVERNOR KUGG
$20.99
Time Remaining: 3h 2m
Buy It Now for only: $20.99
BATMAN 359 MAY 1983 DC COMICS 1ST KILLER CROC COVER 2ND APPEARANCE
BATMAN 359 MAY 1983 DC COMICS 1ST KILLER CROC COVER 2ND APPEARANCE
$23.83
Time Remaining: 3h 7m
Buy It Now for only: $23.83
Lot of 6 AMAZING SPIDER MAN ANNUAL 27 1st Appearance of ANNEX Polybagged w card
Lot of 6 AMAZING SPIDER MAN ANNUAL 27 1st Appearance of ANNEX Polybagged w card
$14.00
Time Remaining: 3h 14m
Fantastic Four  113 strict VG+ 1st appearance The Over Mind
Fantastic Four 113 strict VG+ 1st appearance The Over Mind
$11.25
Time Remaining: 3h 40m
Buy It Now for only: $11.25
HUMAN FLY 1 VF NM 1st Issue Collectors Item 1st Appearance 1977 LQQK
HUMAN FLY 1 VF NM 1st Issue Collectors Item 1st Appearance 1977 LQQK
$15.05
Time Remaining: 4h 54m
Buy It Now for only: $15.05
NEW GODS 7 VG 40 1ST APPEARANCE OF STEPPENWOLF
NEW GODS 7 VG 40 1ST APPEARANCE OF STEPPENWOLF
$25.00
Time Remaining: 6h 26m
Buy It Now for only: $25.00
Detective Comics  354 CGC 94 OW W DC 1966 1st appearance Dr Tzin Tzin
Detective Comics 354 CGC 94 OW W DC 1966 1st appearance Dr Tzin Tzin
$275.00
Time Remaining: 6h 41m
Buy It Now for only: $275.00
CGC 85 IRON FIST 14 MARVEL COMICS 8 1977 1ST APPEARANCE OF SABRETOOTH X MEN
CGC 85 IRON FIST 14 MARVEL COMICS 8 1977 1ST APPEARANCE OF SABRETOOTH X MEN
$499.99
Time Remaining: 6h 58m
Buy It Now for only: $499.99
CGC 55 IRON FIST 14 MARVEL COMICS 8 1977 1ST APPEARANCE OF SABRETOOTH
CGC 55 IRON FIST 14 MARVEL COMICS 8 1977 1ST APPEARANCE OF SABRETOOTH
$299.99
Time Remaining: 6h 59m
Buy It Now for only: $299.99
The New Teen Titans 21 1st Appearance of Brother Blood from Arrow TVJul 1982
The New Teen Titans 21 1st Appearance of Brother Blood from Arrow TVJul 1982
$9.99
Time Remaining: 7h 19m
Buy It Now for only: $9.99
Fantastic Four  109 strict VF NM 1st appearance Annihilus Part II
Fantastic Four 109 strict VF NM 1st appearance Annihilus Part II
$63.00
Time Remaining: 8h 9m
Buy It Now for only: $63.00
Fantastic Four  108 strict VF 1st appearance The Nega Man
Fantastic Four 108 strict VF 1st appearance The Nega Man
$37.00
Time Remaining: 8h 9m
Buy It Now for only: $37.00
Fantastic Four  113 strict VF NM+ 1st appearance The Over Mind
Fantastic Four 113 strict VF NM+ 1st appearance The Over Mind
$56.50
Time Remaining: 8h 9m
Buy It Now for only: $56.50
Fantastic Four  113 strict FN 1st appearance The Over Mind
Fantastic Four 113 strict FN 1st appearance The Over Mind
$15.00
Time Remaining: 8h 9m
Buy It Now for only: $15.00
Fantastic Four  136 strict FN 1st appearance The Wild One
Fantastic Four 136 strict FN 1st appearance The Wild One
$12.00
Time Remaining: 8h 9m
Buy It Now for only: $12.00
Fantastic Four  137 strict FN 1st appearance War Head
Fantastic Four 137 strict FN 1st appearance War Head
$12.00
Time Remaining: 8h 9m
Buy It Now for only: $12.00
Fantastic Four  142 strict FN 1st appearance Darkoth
Fantastic Four 142 strict FN 1st appearance Darkoth
$12.00
Time Remaining: 8h 9m
Buy It Now for only: $12.00
Fantastic Four  146 strict FN 1st appearance The Snomen
Fantastic Four 146 strict FN 1st appearance The Snomen
$12.00
Time Remaining: 8h 9m
Buy It Now for only: $12.00
Fantastic Four  146 strict FN VF 1st appearance The Snomen
Fantastic Four 146 strict FN VF 1st appearance The Snomen
$17.00
Time Remaining: 8h 9m
Buy It Now for only: $17.00
Fantastic Four  145 strict FN VF 1st appearance Tarnak
Fantastic Four 145 strict FN VF 1st appearance Tarnak
$17.00
Time Remaining: 8h 9m
Buy It Now for only: $17.00
Fantastic Four  152 strict VF+ 1st appearance Mahkizmo
Fantastic Four 152 strict VF+ 1st appearance Mahkizmo
$19.00
Time Remaining: 8h 9m
Buy It Now for only: $19.00
Fantastic Four  171 strict VF+ 1st appearance Gorr the Golden Gorilla
Fantastic Four 171 strict VF+ 1st appearance Gorr the Golden Gorilla
$12.00
Time Remaining: 8h 9m
Buy It Now for only: $12.00