Instagram's "explore" page works pretty excellently for this; each post on the grid there is essentially a separate feed. For example on mine the top several posts are: queer art, Zelda, car crash videos, less specific art, 40k memes, politics relevant to me, cat memes, and so on. Each of those is something that Instagram has good reason to think I'd like, and the posts stay fairly consistent with the vibe of the first post as I scroll through any of those feeds.