Perspectives on popular BH product groups in the EU & corresponding payment gateways:
Product type Stable payment capability
Replica (LV, Dior, Gucci...)

Stripe, PayPal die fast

Can run if there is Stripe clone + Offshore LTD (UK, EE) + mask interface
Casino, iGaming, Poker

Block PayPal/Stripe immediately

Use iPayTotal, Nuvei (must set standard), EMerchantBroker
Fundraising, Donate (not transparent)

99% flagged

Use cryptography + peer-to-peer or cover the gateway
Unlicensed pharmaceuticals, fillers, healthcare products

Ship and process payments anonymously via subdomain, crypto
Blackhat services (unlocking tools, courses, bypass, AI cracking tools...)

Use PayHip, Gumroad hidden or crypto via backup QR