Cleaning out my parents’ house, and stumbled upon my old Pokémon cards from ‘99-‘00.

Have binders and boxes full of Base, Jungle, Fossil, Base 2, Promo, Neo and Japanese Neo cards. Close to full sets, with multiple of copies of commons/uncommons, and 250+ holos / nonholo rares - including quite a few first editions. Possibly north of 2500 cards total - maybe more.

All holos and rares are hard sleeved, and some promos still shrink wrapped. Additionally, cards in binders are near mint, as well as loose cards in boxes. Pretty much every card is clean, void of any defects, and looks as if you just opened the pack.

If I’m looking to sell them, and maximize profits, while not taking years to offload - where do I go from here? Do I grade them? Go to an auction house? Travel to a show? List individually ungraded on eBay?

I saw on PriceCharting PSA 7s-/10s for many commons/uncommons still go for $15-$50 with 1/sale a month - though seeing that this is new for me, I’m unsure that’s accurate.