Nyarlep:
Your looking at things from an entirely wrong angle. People are people, not machines or pictures. A "feeder" isn't just a feeder, its another person whos probably looking for a relationship that at the bare minimum probably includes enjoying your company.
tldr; there is more to a relationship than sex
As a feeder with a feedee, I second this.
My feedee is an awkward and goofy man. He'll be the first to admit such. But he makes me happy and I can be vulnerable with him. There's a give and take to our relationship so neither is left wanting.
Meanwhile (and I am speaking a cishet woman) a lot of these so-called "serious feedees" I've run into are horny, desperate men. And that makes them do some ... interesting things. In no particular order, I have received:
A dick pic
An offer for their life insurance pay out
To take care of me in all aspects so I only have to feed them, domme them, and have their children
Many offers to bare their children
Offers to tend to them 24/7 while they get fat and lazy
Offers to physically abuse them
Offers to be their sub (I am strictly domme)
The list goes on.
If you want a feeder, focus on being a decent person and a good partner first and a feedee second.
My feedee didn't do anything special. We just chatted about this and that - most of it non-kink. But we clicked really well. So naturally, we pursued each other.