Im trying to promote/advertise my ref link for bitconnect

I also own the domain bitconnect.io which is a landing page with a join now button that redirects you to my ref link

I cant use google adwords for that
I didnt try facebook yet but im considerig it

How can i start a signature campaign and what is the recommended budget for a signature campaign to get actually any results?

Does anyone have experience advertising on coinmarketcap- they charge a minimum of 500$ so i want to know if its wrth it?