Need your suggestions

Numismatics

I am planning to record the prices sold on ebay of some seris of third-party graded US coins.

Since I doing this only by myself and I don't have much free time. Therefore, I can only record some seris.
So, I need you guys advices on which seris to record. Morgan, Peace, Lincon or others?

Your comment will be appreciated.

ER

Peace, since you don't have much free time, I guess.