I'd probably try to breed pickerels, or maybe one of the smaller species of black bass or bullhead. Next in line would be my sunnies. I would probably bring my warmouth in from their pond and put them in there. I might would even try bichirs. Considering your a first time breeder, except for guppies, you could try one of the larger, easy to care for and breed livebearers, such as four-eyed fish or pike livebearers. Or maybe one of the cichlids, which will take care of their young. With a 180 I would try africans or texas cichlids. There are also some larger minnows you could breed. Creek chubs would be kinda cool. They build long ridge-nests to lay their eggs in.
Nice ideas, but im in the UK, and I think most if not all of your natives are illegal here(might be able to get a permit but abit too much hassle for me)
Well, there are still the livebearers and cichlids that I mentioned. There are also numerous catfish you could try. Plecos of the small-medium sized species would be cool. I'm not a big fan of large fish that aren't complete predators, so I don't really know anything about larger plecos. I think most of them breed in mud-holes anyways. What about cons? Pink convicts actually can look kinda nice as they get larger, especially females. Or you could try severums, angels, discus, or maybe even a pair of albino tiger oscars.