Advertising should be used mostly when you want to grow quickly. Your first group of users should be people that you can pinpoint and will very likely want your product. Do you have those yet?
check my link in my signature - those are the 2 businesses i try to promote
no i have nothing so far
Since your signature lead to business and project in this forum, then all you have to do is advertise your signature.
Posts in various thread and discuss many things about your signature.
If you want, try to make a website about cryptocurrency and write some articles about what you want to advertise, YouTube, Twitter and Facebook will works as well.