@Onderhond: We do have official lists that are made by fans (as opposed to critics).
If you're looking for lists made by "hardcore fans", we 500<400 and Doubling the Canon are two good examples, and both lists contain many films that aren't in the standard canon, and many non-arthouse films.
A personal list made by 1 random fan wouldn't be more interesting than 500<400 or DtC, unless that random fan's taste is similar to your own. But then how many random fan lists should we adopt, and how do we decide which ones to adopt? Any list that we pick would be arbitrary, so I think it makes more sense to adopt a list of films that at least several people like (500<400 and DtC).
If you're looking for something more mainstream, we have IMDb and Reddit. You also might like the Douban list
, which isn't official.
We also have iCM Most Favorited, which is voted by all iCM users, but contains many lesser known films due to the methodology. There's also iCheckMovies Most Favorite - obscure version
but it's not official.
If you want films selected by 1 person, we have the S&S hidden gems list. The participants were critics, but they were asked to pick obscure films, so they had no reason to reinforce the canon.
Genre lists typically go beyond the canon and contain many non-arthouse films, even if the list is made by an expert. For example, the action list, the horror list, the sci-fi lists. Just because a sci-fi list contains a few arthouse films doesn't mean the entire list is arthouse.
If you're looking for more unusual film selections, maybe you'd like the weird list or the cult lists.
We have some specialized lists that were voted by fans: Dutch, LoveHKFilm, Silent Era, Spaghetti Western.
You criticized the Empire Russia list because it contains a few Tarkovsky films, but you only have 11 checks on it, and it looks like you started with the arthouse films, so maybe you judged the list prematurely.
I'm not sure what kinds of lists you're looking for, but if you want a specific type of list, maybe I can search for one.