Newbie here willing to donate to an open source dev. The main goal is to have the lowest transaction fee possible and the highest privacy possible

He accepts these currencies

* USDT TRC20

* USDT BEP20

* TRX

* BTC

I don't know the first two and don't generally know the best way to get them. I'd like to avoid accounts and kyp. I'd like to share 50€ if the amount of money matters. Thanks for the help