EDIT : I am using pipepipe which is a really good client for youtube without ads and bullshit but with added features like downloading anything, better search etc . Adding this because a comment told me the downvotes were because it feels like i'm seeking ads .
I used to have a good enough list so that not much got released without me knowing but i lost it . I have subscribed to some i remember (attached image incase someone has use for it ) but i'm sure i'm missing a lot so do recommend .I like watching trailers in my freetime and if it clicks puts into my watch later list and watch it when i get time . I also have a24 and 20th century studios which didn't got on this list .
PS : I don't care about the nationality of the movie or tv shows that the channel releases trailers of but i'm looking for shows/movies in english or atleast a dub .
Edit : Why the downvote ? Wrong sub ?
Piping in with some odd history info. They were originally made to give theater patrons something to watch while the main film was re-wound. Theaters used to play the same movie on repeat all day until they got a new film, then it was that movie all day. There were no "move times". If you showed up midway you just stayed until it repeated so you could catch the beginning. Also why news reels and other visual media would get played.
Psycho made the change to set times. Hitchcock did not want anyone to accidentally see the end without starting from the beginning. Shortly after that those movie trailers got bastardized into the ads we now know them as.