How difficult/effective is it to buy an existing crypto-related instagram account? How would you market a dApp?

I am launching a decentralized lottery app on ethereum blockchain in the q1 of 2019, probably at the end of February. The mvp is almost ready and it is pretty damn shlick. It is 100% fair and traceable on ethereum blockchain. There is no betting against the house, you can only take bets against other players.

I want to grow a small following on social media before the launch and i am looking for the best way to do it. Buying fake followers is not an option.

Do you guys have any experience with buying social media accounts and if so, what is the best way to do it?

Feel free to share all your thoughts/experiences on marketing crypto related products.

Cheers,

Zhopajeb