Very odd you don’t find Iommi interesting or inventive. He was probably the biggest influence on me before I started playing guitar. You said you are a musician, I’d like to hear your influences.
By the late 1960s, my favorites were Carmine Appice (Vanilla Fudge, Cactus---where he was absolutely at his best), Ginger Baker with Cream (didn't care for his "Air Force" work), and Cozy Powell with Jeff Beck. Despised Keith Moon and Neal Peart---they just overplayed. Mitch Mitchell was ok, but too jazzy, but I liked the guy with Deep Purple who played in that same genre.
Jeff Beck's drummer today is stunning. Carmine has completely lost it---you can barely tell it's him any more. There is some session guy I don't know who plays on a lot of Christian albums particularly "Point of Grace" and is a master of understatement, with power---kind of a new Ringo.