This only works for people that post their original/own content (not sure if people on this forum do that, but thought I'd share anyway). For myself, I take photographs of landscapes and share them on IG. I had about 900 followers, just from people I knew etc. and then I received an email and DM from Instagram about two months ago saying that they will put me on their 'suggested user list' for two weeks. After the two weeks I ended up with 37,000 followers, the amount of followers people gain varies, most people will get more than 30k in two weeks. Also in the email, they gave me the option to recommend other users to be put on the list. So if anyone on here posts their original stuff I would happily use this option to recommend you to Instagram as well as share some other tips which I think helped me get put on the list in the first place, for maybe a bit of help in return about making money online in general?