From A complete guide to Super Metroid speedrunning
Categories with multiple tutorials will have them listed starting with ones more tailored towards new runners.
KPDR (Kraid, Phantoon, Draygon, Ridley) (a.k.a. "old route")
PRKD (Phantoon, Ridley, Kraid, Draygon) (a.k.a. "new route")
IGT (In Game Time)
Zoast (Beginning can also be applied to Any% PRKD)
Overfiendvip (Post-2014 changes to the route)