Looks like Amazon Prime Video has a selection of Troma Films available and what are some worth watching besides The Toxic Avenger? Yes I know they're not greatest films ever but I like how over the top gory they're.
Most every movie I was going to say has already been mentioned. Slither is another great one though its not a Troma film but a James Gunn movie before he got onto Guardians of the Galaxy and after his Troma days.