Cool idea! Especially at times where the HF20 has chased some users away or some just decided that it was a good time for a break. Hopefully, in the upcoming weeks, things will get back on track around here.
So how do I promote my posts on Steemit? Well I have adopted a methodology I apply every time I post:

1. Share on Twitter, Facebook and Medium
2. Hop on Discord and promote my post in the channels I participate (about 8), while respecting their rules and not spamming
3. Verify if any interesting Bots to invest in by respecting the 3.5 days maximum and using this link: https://steembottracker.com/bottracker.html#bid
4. Resteem if I have enough Steem left to do so!

So that is pretty much it on what goes for my promotion. Hope it can be helpful for any other Steemians here :)