I'm not open to discovering new content in social media, that's it. If I want to see someone's posts, there's a handy "follow" button for that. If I don't want to see someone's posts, I don't follow them. Force-feeding me content from people I don't follow in an attempt to manipulate me simply annoys me. The best algorithm is "ORDER BY `created_at` DESC".
If I want to see content from people I don't know, I use YouTube, Reddit or HN — simple as that. I don't use TikTok out of principle.