>>264287569
Beast Saber [https://bsaber.com] can be good since it tries to curate charts and separate the quality from the shit spam. I think they underestimate the sheer volume that any modding scene is capable of shitting out so they're not always on top of things.

Beat Saver [https://beatsaver.com/] has more charts, but it will generally be harder to just browse and find something you like. You're going to go there if you know what you're looking for or were recommended something.