Maybe this?
1) find someone that you find their art likeable
2) contact them about possible commission
3) when it comes to payment, use PayPal if possible
That Is if said PayPal can allow nsfw🤔, maybe the receipt must not contain nsfw tags And words, but rather "payment for digital art" :)

Thanks. I guess that's how someone can get NSFW arts with paypal, without letting the company knows.

yea! I've been doing that for a while now :D
sure, it might be seem as suspicious, but I do want to comm artists :c
so hiding it was the best option in the end