Have a separate Home-Discover Tab and then Following feed tabs.

You can call it Twitter style if you wanna be mean. But it's a classic pattern across the web.

Look at airbnb.com for example. User doesn't have to fill out anything, and already sees some eye candy dopamine. Only when you go and generate a specific search, you get to the "real feed".

Log whatever they engage with, and iteratively use it for improving the Home-Discover Tab.

Tldr, reuse Twitter UX; bypass their centralized algorithm control.