Here's a list of movies tagged with "motel":
https://trashepics.com/media/?tags=motel&category=1

And movies tagged with "hotel":
https://trashepics.com/media/?tags=hotel&category=1


Most of the best have already been listed, but that wont stop me from listing my favorites!

Psycho (1960)
Eaten Alive (1977)
Motel Hell (1980)
The Shining (1980)
Psycho II (1982)
Psycho III (1986)
The Devil's Rejects (2005)
Bug (2006)

The Innkeepers (2011) was decent too.

I doubt many people use it, but it's there alright. I like to rate movies on here, so I can filter the list by seen/unseen, as well as by tags. Easier to get recs that way.