If I get the meaning of this question right.
Your asking what albums a artist put out that you just can't seen to come a cross?
My opportunity buying of new and used records are at record stores, so someone like Tom Petty is there all the time, at least his early common titles. Then the fact he has a bunch of reissues being put out. Big artist putting out albums at the hight of the LPs, Played on pretty good equipment, Doing Rock & Roll at a time of new wave, punk, rap, and kids could afford the records.
If you think about it the hard artist and titles to find for "popular music"are really correlated to the equipment of the time being used. Demographic and target audience, LP and 45s, and music genres in a socioeconomic class.
It's hard to find early 60s late 50s R&B, Rock n Roll, Blues because of this demographic, target audience and socioeconomic class. If they even had and could buy the LP "Album" the equipment could have been vary hard on the record right along with how the owner used and stored it.
I know I haven't mentioned an artist but really anything I can add to my collection that's very clean in the above mention time frame is a plus. I get stoked if I get a old copy of Strawberry Alarm Clock, Them, Free, The Crickets, Howlin Wolf, Sonny Boy, The Miracles, Carl Perkins, Sam the Sham.