WP Engine affiliate program gets a 4.5/5 rating from me. It is very lucrative, pays well for promoting a very trusted hosting and has a cookie tracking period of 180 days.
You could earn anywhere between $200 to $7500 based on the plan you sell and they now include StudioPress themes which brings more products to promote!
This review reflects the subjective opinion of the user, and not the official position of the editors.