Maybe a “for you” section next to following, discover. Each individual can go to a section in their settings and type in keywords that brings all related feed to that section.

Example: I type such words (cars, football, R34, twin turbo, Pokemon, Pikachu, Ai, stock market.. etc..) whatever choice of words I think are commonly used in posts and all feed with such words in title automatically gets generated on my unique “for you” page of topics that personally interest me
Some sort of personalized algorithm