I know some people praise the lack of an algorithm because it makes them spend less time on YouTube but I don’t have that problem anyway. Almost all videos I’ve watched on YouTube. I found through the homepage. The lack of it makes the alternatives useless for me. I’d even maybe be fine with something that takes all the watch next recommendations of the videos in the subscriptions page and jumbles them together as “recommendations”.
you can search for recommended or similar videos with pipe-viewer IIRC.