Localcryptos is an alternative to hodlhodl as other mentioned above but we can't simply say its complete KYC free exchange because traders are free to set their own trading terms on that most of the traders asks your identity for one time verification and this is common practice with fiat to crypto conversion.
But since you are looking a platform just for crypto to crypto conversion then why you shouldn't go for an exchange? Which is far better and secured that p2p trading expereince.
OP doesn't want anything to do with KYC or AML requirements, so a centralized exchange is a no-go area for him. It's very likely that he's from an area where regulations are so strict like the US to an extent that some exchanges block customers from there to use their services.
It's also very risky using centralized exchanges if your BTC is from bitcoin mixers or certain conjoin wallets. The BTC could easily be blocked citing "suspicious" transactions
As for security, I don't think centralized exchanges are far more secure than p2p exchanges. If this was the case then the likes of Binance, Kucoin, Bitfinex wouldn't be appearing in about being hacked.