Whenever the year ends, most reviewers from all sides of the pond post their top movies per year either on articles, social media, or youtube videos.
Start there.
The only ones who don't post lists/offer zero recommendations per year are just in it for grifting. Also check out which movies get nominations on the different award shows, even the indie films. It's probably going to be quite a bit of stuff you didn't hear about. Usually none of it contains capes or is based on toy franchises.
If you enjoy watching films, are not the jaded type, and keep an open mind, do the above and you're bound to like at least 1-5 movies per year, minimum.