USDC (or USDT if you are not European) or Revolut. I've moved away from Paypal as the fees are getting completely out of hand there. Fees can get up to 5.5% which is ridiculous. Revolut is around 2.8% and USDC is completely without fees.
And over time, those fees really add up. Last time I did the math on how much money I wasted on Paypal fees I had to go and pour myself a glass.