Categories with multiple tutorials will have them listed starting with ones more tailored towards new runners.
Strat Chat, hosted by Kipp and TrueMoss, with various guests
KPDR (Kraid, Phantoon, Draygon, Ridley) (a.k.a. "old route")
PRKD (Phantoon, Ridley, Kraid, Draygon) (a.k.a. "new route")
IGT (In Game Time)
ShinyZeni (covers the Door Skip route)
Zoast (Beginning can also be applied to Any% PRKD)
Overfiendvip (Post-2014 changes to the route)