I like the approach in Nostur. You can easily switch to a different account in the side menu. And also have the option to reply as any account you are logged in with, without having to fully switch to that account. 

https://m.primal.net/LXGv.jpg 

 Yeah! That's next for us, but I am thinking on a single feed for all accounts. You could choose to see just one or see everything as a whole. 

Likes, boosts, zaps, reports, etc... they all can be account based.