If you have some sats sitting on Lightning and want to stack without handing your ID to a central exchange, MostroEuropa is worth checking out. It works through Nostr, keeping the process decentralized and non-custodial. Posting an offer helps build the order book for everyone else.

MostroEuropa

MostroEuropa — European Mostro Community

An independent European community around the open-source Mostro protocol.