You can visit stores in your local area, ask if they purchase Pokmon cards, and provide the store owner with a list or photos of your cards
While PSA graders will evaluate all of the attributes possessed by a card in order to determine if the card may be eligible, there will be a clear focus on centering
And at just for a cost, you can't really go wrong
Cruella De Vil, Miserable as Usual An early Disney Lorcana promo that holds consistent value
However, by looking very closely at the copyright text toward the bottom of the back, the fakes text is fuzzier and less crisp than on the genuine card
ZIK Analytics lets you see which sets, artists, and price bands are actually moving before you buy or list, so you build on data instead of hope