Coinbase has a recurring buy option from your bank account. You could setup a US bank acct and have your US employer direct deposit into that account. Then setup your recurring buy from coinbase to trigger after pay day. Your cost will be 1%.
Does that really work? Can you really fund your account from any bank account, even if it's not your own? That would be fantastic.
I'm sure you have to prove that it is your account.
Trouble is that it will be on the record that you bought BTC. Better to withdraw cash and find a BTC ATM.