waffler nursery in NY is very reasonably priced and sells some of that more modern varieties. They don't have a ton of variety there, but probably could scrape out a decent order from there.
Theres alot of good old classics too. Every large collection should have granny smith, macoun, empire, honeycrisp, cortland, and macintosh. No hoenycrisp or cortland. Trying to stay disease resistant if not disease free. Went sundace over goldrush for that reason too.