I was thinking to keep the brahma so those mixes would be bigger birds for eggs and the table.
For meat, Brahma is usually a poor choice. Yes, they get big, but they grow slowly. First they grow a large bony carcass, then they finally start to put more meat on it. But by that time the meat is tough because of how old the bird is.
Of course all chickens are edible, and a tough chicken can be delicious in certain recipes (chicken & dumplings, coq au vin, and other slow-cooked moist dishes.) But if you want fried chicken (tender enough to fry, large enough to be worth frying) I would not choose the Brahma (slow-growing) or the Polish (small). The Easter Egger might or might not be a good choice.
I also have a personal bias against crested heads (they can make it hard for the chicken to see) and feathered feet (they get muddy). So that's another reason I would be avoiding the Brahma and Polish, and seriously considering the Easter Egger (might not keep him either, depending on what I see of physical traits and temperament.) But that's me, not you.
If you want to sell interesting chicks, you might find more market for chicks that lay colored eggs, or that have cute fuzzy feet, or that have crested heads. If you want to know whether the EE rooster has the genes to produce blue eggs, there is a DNA test available. But if you decide against him for other reasons, there would be no point in paying for the test.
It should be possible to produce some sexlink chicks with certain sets of hens and roosters (example: Blue Copper Marans rooster or Buff Brahma rooster with Barred Rock hens should be sexable at hatch, because daughters will be black while sons have a yellow dot on their heads.) Selling sexed chicks might be good (happy customers, and they pay more for pullets) or bad (you may be unable to sell the males.) Depending on their colors, the Polish rooster and the EE rooster might also be able to sire sexlinks. Depending on colors, the Wyandottes and some of the EE hens might be able to produce sexlink chicks with certain roosters. The Blue Plymouth Tint hens and the Speckled Sussex hens are not going to produce sexlink chicks for you, no matter what rooster you choose.