María Laura Rojas - Google search job( 100 websites to find)

I need to find 100 websites that they have option to save and add credit cards,  to save it without doing checkout and do any transaction, I want this because I am making a website and I want to see the best and fastest way to do and to compare between companies for payment gateway , find for me infamous websites because I already have famous one and find  that they do not use recapcha, do you know what is recapcha ?
you mostly find this option in shopping websites
https://www.staples.com/gus/sdc/profileinfo/card, here you have one example