Since your primary concern here is monetary why not attempt to utilize your patreon account more effectively, as you have control over it. I know from viewing your patreon account that there will be no advanced chapters as you are a contracted author of webnovel.com. So in lieu of that the main draw of your patreon is official art drawn by you the author. Of which there have been 10 pieces over a course of a little over two years. Averaging to 1 piece every 2-3 months. To put bluntly this hasn't been a big draw for new patrons. As I am unaware of the details of your contract with webnovel.com I'm unaware of how many of my suggestions would be possible, that said. Obviously the biggest draw for those who go to your patreon would be your writing. With the obstacles to this being piracy and your contract. A way to bypass piracy would be to sale your labor instead of the product. My suggestion being to set monetary goals on patreon that when met would be a promise to write an additional chapter per week. The series that would get extra chapters being decided by a monthly poll. I wouldn't suggest a winner takes all approach here, instead I'd recommend basing it on bonus chapters per week and percentage of votes accrued. If the previous idea wouldn't be possible than I'd have strong doubts about this one but perhaps you could provide your patrons access to official full volume PDFs of no longer privileged chapters with chapter select, a cover and illustrations of some scenes. An idea which I think would pair well with my next suggestion. Hiring an editor. Self explanatory a goal if met would be a promise to hire an editor. He, she mix-ups could be a thing of the past.