People need to understand that a decentralized swap solution is always going to be more inconvenient than a centralized one especially for blockchains that do not have smart contract functionality. Bisq has the option for "altcoin instant" when doing exchanges between different crypto which allows for trades that conclude in 1 hour.

THORChain has good rates and allows for decentralized swaps between a wide variety of coins.

For centralized ones wizardswap is a decent one that hasnt frozen funds as far as i know.