CHECKSFORLESS.COM® has an affiliate program. You can earn 15% promoting ChecksForLess through your approved partnership. The Affiliate Advantage program will provide you with a unique affiliate link and marketing assets.
Square has an Affiliate Program that allows participating websites to make a commission on activations and select sales referred to Square using their assigned affiliate links. Square provides these links, banners, and marketing assets to use on your blog or website.
Acorns has an affiliate program that pays a flat fee per referral that you send through your special link.