Did you tried SN Agora? https://stacker.news/~AGORA/

More here: https://satstash.io/ - P2P Bitcoin marketplace https://www.oshi.tech/ - mobile app for small merchants https://t.me/bitcoinp2pmarketplace - Telegram group to sell stuff P2P https://plebeian.market/ - auction house with Bitcoin LN https://robosats.org - P2P Tor only marketplace (you can put whatever offer you want) https://paid.co/

or start your own with nostr market + lnbits https://darth-coin.github.io/merchants/nostr-market-with-lnbits-en.html or with https://cypher.space/