Here are some sites that you can buy crypto vouchers using CC. Some are 2d sites, your job is to find which ones are!
seagm: seagm(dot)com
Offgamers: offgamers(Dot)com
Eneba: eneba(Dot)com
Baxity: baxity(Dot)com
Driffle: driffle(Dot)com
K4G: k4g(Dot)com
Giftsy: giftsy(Dot)com
Gamecardsdirect: gamecardsdirect(Dot)com
Kinguin: kinguin(Dot)net
Difmark: difmark(Dot)com
Arpay: arpay(Dot)com
Coinsbee: coinsbee(Dot)com
Aussui: aussui(Dot)com
Dundle: dundle(Dot)com
beCHARGE: becharge(Dot)com
Ebayclub: ebayclub(Dot)com
Itemku: itemku(Dot)com
Digikarta: digikarta(Dot)com
Moontopup: moontopup(Dot)com
Joytify: joytify(Dot)com
Aufladenkarte: aufladenkarte(Dot)com
G2A: g2a(Dot)com
Gueez: gueez(Dot)com
GameCardi: gamecardi(Dot)com
Electronicfirst: electronicfirst(Dot)com
Shoppy Code: shoppy(Dot)gg (assuming this refers to Shoppy, a common code selling platform)
Tikkery: tikkery(Dot)com