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

Batman Family 6 Giant 1st Joker Appearance Key Comic Book
Batman Family 6 Giant 1st Joker Appearance Key Comic Book
$14.99
Time Remaining: 32m
Buy It Now for only: $14.99
MARVEL AVENGERS 196 1ST APPEARANCE OF TASKMASTER KEY BOOK 1980 FN 55
MARVEL AVENGERS 196 1ST APPEARANCE OF TASKMASTER KEY BOOK 1980 FN 55
$49.99
Time Remaining: 35m
Buy It Now for only: $49.99
Marvel Spotlight 2 FN+ Origin 1st Appearance Werewolf by Night KEY Marvel Comic
Marvel Spotlight 2 FN+ Origin 1st Appearance Werewolf by Night KEY Marvel Comic
$60.00
Time Remaining: 35m
SAVAGE SHE HULK 1 1ST APPEARANCE AND ORIGIN
SAVAGE SHE HULK 1 1ST APPEARANCE AND ORIGIN
$76.99
Time Remaining: 36m
Buy It Now for only: $76.99
Marvel Iron Man 304 1994 1st Full Appearance Hulk Buster BAG BOARD
Marvel Iron Man 304 1994 1st Full Appearance Hulk Buster BAG BOARD
$21.95
Time Remaining: 37m
Kamandi 27 March 1975 VF NM JACK KIRBY ARTWORK 1ST APPEARANCE OF BRITTANEKS
Kamandi 27 March 1975 VF NM JACK KIRBY ARTWORK 1ST APPEARANCE OF BRITTANEKS
$4.99
Time Remaining: 1h 11m
The Amazing Spider Man 124 Coverless September 1973 Man Wolf 1st appearance
The Amazing Spider Man 124 Coverless September 1973 Man Wolf 1st appearance
$5.00
Time Remaining: 1h 17m
Buy It Now for only: $5.00
Marvel Two In One 61 Mar 1980 F VF The Thing Starhawk 1st Appearance of HER
Marvel Two In One 61 Mar 1980 F VF The Thing Starhawk 1st Appearance of HER
$10.00
Time Remaining: 1h 17m
Buy It Now for only: $10.00
Captain America 275 FN 1st Appearance of Baron Zemo II Newsstand Variant M Zeck
Captain America 275 FN 1st Appearance of Baron Zemo II Newsstand Variant M Zeck
$10.00
Time Remaining: 1h 18m
Buy It Now for only: $10.00
Marvel Premiere 19 Iron Fist 1st Colleen Wing Appearance VF
Marvel Premiere 19 Iron Fist 1st Colleen Wing Appearance VF
$30.00
Time Remaining: 1h 26m
NOVA 3 1st DIAMONDHEAD Appearance Signed by MARV WOLFMAN High Grade
NOVA 3 1st DIAMONDHEAD Appearance Signed by MARV WOLFMAN High Grade
$20.00
Time Remaining: 1h 27m
FOOM 2 1ST APPEARANCE WOLVERINE PROTOTYPE VF STERANKO COVER NO POSTAGE LABEL
FOOM 2 1ST APPEARANCE WOLVERINE PROTOTYPE VF STERANKO COVER NO POSTAGE LABEL
$150.00
Time Remaining: 1h 30m
Buy It Now for only: $225.00
Scooby Doo 1 CGC 70 Gold Key 1970 1st Appearance TV Show RARE G8 316 cm
Scooby Doo 1 CGC 70 Gold Key 1970 1st Appearance TV Show RARE G8 316 cm
$1,295.00
Time Remaining: 1h 48m
Buy It Now for only: $1,295.00
OCCULT FILES OF DOCTOR SPEKTOR 1 VF 1st LAKOTA Appearance 1973 Gold Key
OCCULT FILES OF DOCTOR SPEKTOR 1 VF 1st LAKOTA Appearance 1973 Gold Key
$31.22
Time Remaining: 1h 51m
Buy It Now for only: $31.22
Marvel Team Up Spider Man 95 1st Appearance Mockingbird
Marvel Team Up Spider Man 95 1st Appearance Mockingbird
$40.00
Time Remaining: 1h 52m
Buy It Now for only: $40.00
DC Comic Book Fury of Firestorm Issue 7 1982 1st Appearance Plastique HQ Copy
DC Comic Book Fury of Firestorm Issue 7 1982 1st Appearance Plastique HQ Copy
$10.00
Time Remaining: 2h 7m
Buy It Now for only: $10.00
Richard Dragon Kung Fu Fighter 1 VF 80 high grade 1st appearance 1975 DC
Richard Dragon Kung Fu Fighter 1 VF 80 high grade 1st appearance 1975 DC
$25.99
Time Remaining: 2h 8m
Buy It Now for only: $25.99
UNCANNY X MEN 131 MARVEL BRONZE AGE HIGHER GRADE 1ST APPEARANCE OF WHITE QUEEN
UNCANNY X MEN 131 MARVEL BRONZE AGE HIGHER GRADE 1ST APPEARANCE OF WHITE QUEEN
$10.00 (1 Bid)
Time Remaining: 2h 22m
Captain America 206 strict VF NM 90 High Grade 1st Appearance The Swine
Captain America 206 strict VF NM 90 High Grade 1st Appearance The Swine
$11.00
Time Remaining: 2h 27m
Buy It Now for only: $11.00
Captain America 272  1st Appearance of Vermin   92 NM cond
Captain America 272 1st Appearance of Vermin 92 NM cond
$2.99 (1 Bid)
Time Remaining: 2h 40m
MS MARVEL 16 APR 1978 MYSTIQUE RAVEN DARKHOLME 1st BRIEF APPEARANCE NICE NM
MS MARVEL 16 APR 1978 MYSTIQUE RAVEN DARKHOLME 1st BRIEF APPEARANCE NICE NM
$85.00
Time Remaining: 2h 41m
GREEN LANTERN 116 ARROW 1ST APPEARANCE GUY GARDNER AS LANTERN BRONZE AGE DC
GREEN LANTERN 116 ARROW 1ST APPEARANCE GUY GARDNER AS LANTERN BRONZE AGE DC
$19.99
Time Remaining: 2h 44m
Buy It Now for only: $19.99
Rom Space Knight 1 nice origin 1st appearance 1979 Marvel create a lot
Rom Space Knight 1 nice origin 1st appearance 1979 Marvel create a lot
$17.99
Time Remaining: 2h 49m
Buy It Now for only: $17.99
Amazing Spider Man 411 1ST APPEARANCE GAUNT THE ROBOT MASTER MOVIE VILLIAN
Amazing Spider Man 411 1ST APPEARANCE GAUNT THE ROBOT MASTER MOVIE VILLIAN
$17.99
Time Remaining: 2h 52m
Buy It Now for only: $17.99
THE DEFENDERS 28 50 1ST APPEARANCE OF STARHAWK
THE DEFENDERS 28 50 1ST APPEARANCE OF STARHAWK
$29.97
Time Remaining: 3h 1m
Buy It Now for only: $29.97
MARVEL PREMIERE 57 92 1ST US APPEARANCE OF DR WHO
MARVEL PREMIERE 57 92 1ST US APPEARANCE OF DR WHO
$34.97
Time Remaining: 3h 1m
Buy It Now for only: $34.97
FIRESTORM 1 80 1ST APPEARANCE OF FIRESTORM
FIRESTORM 1 80 1ST APPEARANCE OF FIRESTORM
$39.97
Time Remaining: 3h 1m
Buy It Now for only: $39.97
Demon 1 nice copy 1st appearance Demon  Morgaine Le Fey 1972 Jack Kirby art
Demon 1 nice copy 1st appearance Demon Morgaine Le Fey 1972 Jack Kirby art
$49.99
Time Remaining: 3h 2m
Buy It Now for only: $49.99
FIRESTORM 1 1st Appearance of FIRESTORM  85 VF+ 1978 DC
FIRESTORM 1 1st Appearance of FIRESTORM 85 VF+ 1978 DC
$49.99
Time Remaining: 3h 2m
Buy It Now for only: $49.99
Charlton Bullseye 5  1st Appearance Warhund   65 FN+ cond
Charlton Bullseye 5 1st Appearance Warhund 65 FN+ cond
$1.99
Time Remaining: 3h 4m
Detective 457 higher grade 1st appearance Leslie Thomkins 1976 origin Batman
Detective 457 higher grade 1st appearance Leslie Thomkins 1976 origin Batman
$29.99
Time Remaining: 3h 6m
Buy It Now for only: $29.99
Detective 469 VF NM 90 high grade 1st appearance Dr Phosphorous Batman 1977 DC
Detective 469 VF NM 90 high grade 1st appearance Dr Phosphorous Batman 1977 DC
$37.99
Time Remaining: 3h 8m
Buy It Now for only: $37.99
The NEW TEEN TITANS 2 Dec 1980 High Grade Comic 1st Deathstroke Appearance
The NEW TEEN TITANS 2 Dec 1980 High Grade Comic 1st Deathstroke Appearance
$74.00 (4 Bids)
Time Remaining: 3h 8m
Avengers 72 1st Appearance of Zodiac  FINE
Avengers 72 1st Appearance of Zodiac FINE
$9.99
Time Remaining: 3h 8m
Detective 471 VF NM 90 high grade 1st appearance Hugo Strange 1977 Batman
Detective 471 VF NM 90 high grade 1st appearance Hugo Strange 1977 Batman
$47.99
Time Remaining: 3h 10m
Buy It Now for only: $47.99
THE AVENGERS 144 1st APPEARANCE OF HELLCAT February 1976 Marvel
THE AVENGERS 144 1st APPEARANCE OF HELLCAT February 1976 Marvel
$44.99
Time Remaining: 3h 10m
Green Lantern 145 1st Appearance of Ion VF NM Comics Comic Book Books Lot of 1
Green Lantern 145 1st Appearance of Ion VF NM Comics Comic Book Books Lot of 1
$9.99
Time Remaining: 3h 12m
Avengers 83 First Series CGC 92 1st Appearance of Valkyrie Liberators Key
Avengers 83 First Series CGC 92 1st Appearance of Valkyrie Liberators Key
$365.00
Time Remaining: 3h 32m
Marvel Preview Presents Satana 7 1st Appearance of Rocket Raccoon GOTG 1976 KEY
Marvel Preview Presents Satana 7 1st Appearance of Rocket Raccoon GOTG 1976 KEY
$219.99
Time Remaining: 3h 33m
Buy It Now for only: $219.99
Defenders 53  Clea 1st Appearance Lunatik   75 VF cond
Defenders 53 Clea 1st Appearance Lunatik 75 VF cond
$2.99
Time Remaining: 3h 40m