You could get a regular crypto account. It’s been a while so I’m not sure but Binance perhaps.
They do operate with KYC (Know you customer) do you can buy XMR here but you should move it from that wallet to an anonymous one.
Depending on what you are doing it with it you could use a simple app that generates wallets for you. Or you can use a cold storage device.
Never make purchases from a wallet linked to the account where you deposit real money. But if you transfer it out to different XMR wallets then it’s better.
This is from memory and likely wrong it places. Do your own research on how to be anonymous.
I’m not saying this is your use case but looking for guides in using XMR on Darkweb markets should give you all the information you require.
Google things like how to buy XMR anon etc. how to create anon wallets and store them.
You got this OP.
Damn. Kudos.