I you want to promote your work, here is a link to some tips from people with 500+ subs in the forums.
Personally, I say, don't do a bland promotion where you just drop a link, build relationships, do collabs in the Collabs section of the forums or discord , do reviews, and offer whatever you can.
Also, be confident that your work will succeed. Don't place all your bets on being popular, but place them in your work, and it will naturally succeed in most cases. It also depend on how you define "Success" as well, but that's a whole other topic
Essentially: just show your readers that you care, that's my main tip.