Looking for Advice on 3* Bonus Hero

I’ve been rotating 3* characters the same way I farm my 2* for a while now. Typically I set my 3* Bonus Hero to be whichever 3* character(s) that I have that is currently not champed, so I can get champed faster. For the first time since I flipped my first 3*, I have all my 3* characters champed again… I’m looking for a recommendation for which 3* I should set to be my Bonus?

If it’ll help, you can take a look at my roster (linked in my signature).

I’ve got five champed 5*, my next best that I’d like to champ are Daredevil and Okoye (my current 5* Bonus Heroes). I know Shuri feeds Okoye, so Shuri is my 4* Bonus Hero. Is there a 3* that feeds Shuri? Is there a 4* (and subsequent 3*) that feeds Matt Murdock?

2* bullseye to 3* bullseye to kingpin to 5* daredevil. Shuri has no feeder.

Otherwise I like bonus hero on the 3’s that have 2* feeders then give 4’s and 5’s. I think its hawkguy, bullseye, patch, and then I’m drawing blanks but I know there are more.

Bullseye it is then. Thank you.

2* Cap feeds 3* Cap then Bucky then IW Cap. That’s the only other one I can see.

Thanks… I’ll keep that in mind for if/when I ever get around to working on IW Cap.