Let me tell you. Facebook is the best option because of their security is far more than most of the other social networking site and you can just see any crypto related projects (ICOs) that fan page on Facebook because Facebook admin will ask them to provide some genuine documents which back their project and if they can't provide the account will be ban. Therefore, is the best social site to find genuine ICOs.

Hello
I'm working on an application idea for this industry and prototype and documents will complete soon. I'm looking to find an investor for start ( developing, server, marketing, ...).
I'm not looking for big money or do an ICO.

what is your suggestion or idea?

thanks for your helping

Well, Facebook advertising is now an option again, so I would definitely look into that.
You can just run the campaigns yourself, it isn't that difficult.

AFAIK Goodle still doesn't allow cryptocurrency-related advertising, so don't think that's an option.