Reputable bloggers with millions of subscribers do not often take up a developing project.
And for developing crypto projects, reputation is very important. So contact bloggers who advertise everything its bad idea.
Do you know crypto bloggers who value their reputation and advertise developing projects?It's a great idea actually, not only their content gets indexed by Google but if the right keywords about your project are targetted you can have many people searching online landing in your project just go with a blog with good Google page rank, they are respected by Google and anything they write will be landed on the first page of Google.