Actually I don't see now a decentralized exchange that could give traders a lot of options to trade as they only list coins with low volume and in general decentralized exchange has a very low volume even if you combine all of them and compare it to centralized trading sites.

If you are looking to protect your privacy that you don't like to undergo the KYC requirement, then I think it's possible in some centralized exchange but up to the maximum limit only. I guess Binance, Kucoin, and even hitbtc can provide that for you, just check their updated terms as I might be wrong since I have upgraded my accounts by getting it KYC complied.