I'm mostly into the older, campier stuff personally.
Anything Herschell Gordon Lewis (throw a dart at the list, personal recommendation is Two Thousand Maniacs ( 1964))
Any of Dario Argento's earlier movies (Deep Red (1975) is my personal suggestion)
Drive-In Massacre (1976)
The Driller Killer (1979)
Messiah of Evil (1973)
Braindead (1992)
Pretty much anything you could find on those "50 Classic Horror Movie" packs you could find everywhere this time of year in the 2000s and early 2010s
There's some newer stuff that has that sort of classic feel too without being an outright ripoff, like X and by extension Pearl.