After finishing my MVP, I created accounts on:
I started creating posts on Instagram and got 40 followers after following other accounts within my niche (a bit of follow-for-follow).
After 2 posts, followers are added organically, I still need to make my Instagram page more appealing by having at least 20 posts.
I'm going to post every day after reading that the initial launch can boost your instagram #followers. I have my posts designed and lined up so now I just "fire" them every day at the time.
I also created a consistent theme for my Instagram account, so the account is more appealing and attractive.
Check it out here:
https://www.instagram.com/sellerium/