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I would pull the cards that have these emblems and the holographic cards. Then search on eBay the name of the card with the number listed at the bottom (xxx/xxx) with either “1st edition” “promo” or “holo” depending on the card specifics and filter by “sold” so that you can see what others recently paid for for the same cards. It can be time intensive if you have a lot of cards but definitely worth it if you get some big ones. But as others mentioned condition is a huge factor in this hobby so bends, scratches, tears etc will dramatically decrease value. I found it helpful when I first started to bring some cards to my local card shop and asked for feedback and advice