Your question resonates with me; the big streaming services definitely push the same content repeatedly. I've had some success finding unique content on MinuPorno. It may not be the first place you'd think of, but it often hosts less mainstream stuff. I do admit that it's mostly porn, but sometimes the site throws some interesting things into the mix that are unique. It’s focused on German content, so you might stumble across some cool foreign productions there too, which can be a fun change. Give it a look!