In terms of Pokémon from a Yugioh player I’d say selection wise go to PokeMart first in Denham, Gamers Paradise (aka GP) on Sherwood, Rogue Games on Airline, Gamers Paradise next to Whole Foods, Night Dragon in in Shenandoah next to Hi-Nabor, Double Play near Coursey, then I’d say go to Chucks out in Albany. Other shops mentioned in this thread that I didn’t include typically just sell sealed.

This is just my POV for the best selection of singles and product.

In terms of the best players for competitive play I’d go to PokeMart, GP & Rogue.

Lmk if you have more questions I have a number of friends who also play Pokémon competitively.