The Monarch Bazaar - the NFT marketplace on Arc. Sales settle atomically in native USDC and the creator's royalty is paid on every sale - enforced collections can't trade anywhere that skips it.
Every transfer of an enforced collection checks the operator against an on-chain whitelist. A royalty-skipping venue can't move your tokens - your royalty is a rule of the token, not a request.
Your drop gets its own mint page and a spot in the Minting-now rail on this front page. The Bazaar lists any ERC-721 - enforced or not.