best afiliate programe payment support bitcoin, and high comission you can try is hyip investment site, or cloud mining site
four cloud mining site you can find review in forum bitcointalk
Obviously OP meant LEGAL affiliate programs. And so far I have found online coinbase program where the user and you get 10 dollar.
It's not a lot but at least you can be sure they will pay you out.
Next to coinbase most exchanges don't offer a affiliate program, i've checked that with bittrex and c-cex. I know yobit offers a affiliate campaign but I have zero trust in yobit as a exchanges and in yobit as a affiliate partner.