Hello the best choice is safepal. You can deposit your bitcoin there and swap it to different altcoins and what is more good is its supporting a lot of coins and tokens under different blockchain. Truly a cross chain dex and also a non custodial. Also non KYC and you hold your own keys.

Check out my thread about safepal.

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https://bitcointalk.org/index.php?topic=5310317.msg56123368#msg56123368