I have discovered you can follow hashtags, which is basically how you can be your own algorithm.

I don't know how you do it in the apps, but in browser:

(1) click on a hashtag you want to follow,

(2) at the top of the list of posts with that hashtag is the little person symbol (see pic). Click it. It will turn the + to an x, that means that hashtag will now show up in your feed.

Hope this helps those of us on the #TwitterMigration #twitterexodus