The original New Mutants.
For New Mutants essential reads, you should read New Mutants Classic vol 1 - 4 and New Mutants Special Edition #1, Uncanny X-Men Annual #9 & #10
https://comicvine.gamespot.com/new-m...2/4000-153645/
Vol 1 tells the origin of Karma, Dani, Wolfsbane, Cannonball, Sunspot
Vol 2 tells the origin of Magma, Magik, Cypher, first appearance of Warpath (in Hellions team). Magik #1-4 tells more about origin of Magik
Vol 3 is first appearance of Warlock.
Vol 4 tells the origin of Legion (who is Xavier's son) and it's Guido (aka Strong Guy) first appearance.
Annuals: New Mutants Special Edition #1 and Uncanny X-Men Annual vol #9
tells how Dani became the Valkyrie and how Wolfsbane met her son's father.
https://marvel.fandom.com/wiki/New_M...dition_Vol_1_1
https://marvel.fandom.com/wiki/Uncan...ual_Vol_1_1985
Original outfits:
Link to the old thread
https://community.cbr.com/showthread...s-Appreciation