Boosting With Other Accounts

I've been reading through these threads for about a month, and I've built up a few accounts that have around 1-3k each. I ran them through a bot and had them comment on pictures in their niche. Although, after extensive reading it seems like the best way to gain followers is through smaller accounts basically "spamming" or advertising the main account. I was wondering if anyone here has any insight on where to start with this process? I have 10 accounts made and Instagram Mega Bot.

Any help is appreciated!

Thanks!

You will need FollowLikers or similar bot that can run multiple accs. Mega bot will not handle this.