How does one market after releasing their comic?

Hey everyone, I just released my new graphic novel and have no idea where to start finding my community.

I have seen a great post on the forums here from a fellow creator referencing several subreddits that you can post your work on which I will definitely start doing. I tried joining the discord server but am struggling a bit in using the platform.

As established creators with a following, what other advice can you give us to promote our work?

Thank you!