Find out who the payment processor is four 4 different adult websites

Find out who the payment processor is 44 different adult websites.

I need someone that can figure out who four different adult escort websites use as their payment processor.

I also need to know if they take debit cards credit cards gift cards or bitcoin.

The websites are;
Eros .com
Adultsearch .com
Tryst .link
Adultlook .com