Supernova's by Mike Carey
New X-Men by Kyle and Yost
Wolverine & Havok: Meltdown by Simonson's
Weapon X by BWS
Starting with the earlier arc from issue 20 works. I don't think it's at all necessary to read Inferno before Quest for Magik whenever we get around to the latter. Inferno doesn't continue or resolve any of the plot threads set up in the Magik mini but rather abandons them until Quest for Magik brought them back, and because Simonson got the most basic things about Illyana's character and origin wrong it just creates problems while not being a good story, at least the New Mutants part. In general I'd tell new readers looking to get into Magik to skip the entire Louise Simonson run of New Mutants and go straight from the last Claremont New Mutants issue to Quest for Magik. Illyana's character and history make more sense without everything in between.
Okay let’s plan on reading issues 20-23. I’ll start a discussion thread on Wednesday the 13th and we can just go issue by issue instead of all 3 at once. Again no rush just join in the discussion whenever you’re ready.