If you want to invest you focus on ICOs, websites like icobench, icodrops or cocoricos help on making the due diligence and you can make huge benefits on promising ICOs, but you need to find good ones. It's too late for bitcoin, or this can take time if you think about a long term investment. Depends on too many factors...

This is a theater play, it sounds like a techno coming from the bottom, but a THink Tank linked to the FED would have so many incentives doing this. It will let them keep the lead in the case of an economic crisis of the $. It's called Genius

1. Paid Ads on Youtube
2. Paid Ads on Facebook (allowed now)
3. Reddit Organic Marketing
4. Emailing
5. Co-branding / Partnerships / Blogs / Youtubers
6. SEO
7. Growth Hacks
8. List your airdrop on airdrops.io or cocoricos.io
9. Get a bounty management system like bountyhunters.io

Early adopters know they will have a bigger part than the later majority that will get fucked up.