PayPal is a place where you can get charged back easily.
You can prevent it by asking someone to gift you the money as family and friends.
Also by have the buyer leave a note saying that they have already received the part of their deal.
It's an old method and I'm not sure if it still works.
Another method was to send via goods and services + chargeback and then cancel the chargeback.
If you don't want chargeback, BTC would be a better option.