Source : https://www.indiehackers.com/round-table/how-did-you-find-your-earliest-users
1. market place
2. naturally grown audience
3. cold emails, outbound sales
4. SEO ‘optimization’
5. product hunt, reddit, hackernews
6. lifetime deals
7. slack
8. facebook, angel list, beta list
9. twitter, instagram, linkedin
10. ads
11. Blind, Quora, other QA sites.
12. press coverage