Some of us who have actually stocked walleye in our ponds have not experienced much admirable growth rates even with abundant forage present.

Don't get me wrong though, I don't think they hurt anything, but probably don't expect a ton of walleye fillets down the line.

I would definitely add Yellow Perch.

Consider Smallmouth also. HSB are good too.

But before you get to that, everyone else's questions are geared towards determining the current condition of your pond. Like other said, it sounds like you are over crowed with Largemouth Bass, and may not have a great forage base.

You might also have bullheads in there which wouldn't be surprising.

Excerpt from Robert Crais' "The Monkey's Raincoat:"
"She took another microscopic bite of her sandwich, then pushed it away. Maybe she absorbed nutrients from her surroundings."