MARodriguez there's no easy one way to do this. Takes a bit of effort.
You can take advantage of the Shameless Promotion threads. I've gathered a list in the link below
https://forum.webnovel.com/d/22540-shameless-book-promotion-thread-list
There's also swap reviews where you review for a review. Tally in link below that could start you up.
https://forum.webnovel.com/d/22536-swap-review-thread-list
The book itself, make sure it has a good cover and a marketable summary. Your summary is your sells hook/pitch.
As long as you deliver about 80% grammar quality : 90%-100% compelling story and characters, you have a chance for retained readership. At least starting out. It's okay to revise, proof and edit as you go.
Oh, and if you're ok with it, engaging with your readers comments can help too.
Hope that helps