Some good advice on similar questions:
Ask HN: How did you acquire your first 100 users?: https://news.ycombinator.com/item?id=14191161
Ask HN: How did you grow from 100 to 1,000 users?: https://news.ycombinator.com/item?id=14227063
I have this 100+ comment thread in my favorites https://news.ycombinator.com/item?id=14191161
This post should still apply https://news.ycombinator.com/item?id=14191161
Some good advice on similar questions:
Ask HN: How did you acquire your first 100 users?: https://news.ycombinator.com/item?id=14191161
Ask HN: How did you grow from 100 to 1,000 users?: https://news.ycombinator.com/item?id=14227063