https://www.gilberthwild.com/
My grandmother used to buy from these guys. I bought my daylilies from them. They specialize in daylilies, peonies, irises, and hostas. I would not buy other perennials from them, except for the above. But they carry many varieties of daylilies at good prices. IMO, the tetraploids are the best, and they are the only ones I’d buy now.
If you want more info about a variety, you can google the name to see different pics.
Wild will sell you discounted lots of plants if you simply want loads of plants.
I can’t remember if they sell daylilies in pots. But however they come they are dead easy to plant.