>>82252133
You don't need to buy XMR in an anon way, it's legal to buy Monero.
And it's traceable until the moment you have the Monero. Once you have it what you do with it is untraceable.

But to answer your question the most anon way to buy Monero is with Reto Swap, a P2P Monero trading platform. You can literally send cash money in an envelope to a guy that sends you Monero in exchange.
But except if you have dirty money there's no reason to do that. Just buy Monero with your debit card, it's fine.