Not sure far your willing to travel but okemo and mt snow have some pretty long runs. I usually take the bus up there. I was on the lift only a few times compared to other mountains like mountain creek where all I do is sit on the lift lol
My personal recommendation for a beginner is Shawnee in the Poconos, none of the runs are too steep, but yet not too flat at the same time. Bunny hills are never going to be that long, Shawnee's is decent, but it also has some nice easy greens, cheap lift tickets and long hours open.
Camelback is a shitshow, hate that place. Would rather go to Blue or Elk if I go to PA nowadays, but rarely do.
I visited a bunch of places this season Thunder Ridge (2x), Shawnee (2x), Hunter (took my first lesson there and returned for the last day of the season), Windham, Plattekill, Mountain Creek (gave up because of the rain but discovered Mt. Peter (2x) on the way back) I went to Campgaw a total of 3 or 4 times same for Tuxedo Ridge (both are great for after work practice). Stayed on green but successfully tried Blue on Shawnee and Hunter. ll places have pros and cons. Mayor accomplishment staying vertical for the most part and riding switch. Goal for the next season....butters and having good time.
Belleayre has a pretty long green trail called Deer Run. It's pretty good trail to learn on.
I drove by and considered returning but they ran out of snow before I was able to do that. I will definitely try it next season. I found that the longer the run, the faster I learn and the longer the lift ride so there is plenty of time to rest before the next ride.