Add prefixes to your site. You are running Xenforo, so this feature is already there, so you should most definitely make use of it. You can later use those prefixes to move threads into new sections. You still have way too many forums. People on our site have asked for a "Health & Fitness" and a "Technology" section. We told them that if there are enough threads made in the general section on those topics, then we will create separate forums for them at a later date. That was a time ago.
If you look here, you can see that there is no need for those yet, and our forum is a lot more active than yours.
http://www.sakugacity.com/forums/general-discussion.20/
You should have one section for TV & Movies. You have many sections that are too similar and should be consolidated. Have tags for Movies, TV ads, TVseries and so on.
Why is Literature separate from Books/Comics etc? Those are almost the same thing.Maybe something like "Printed Media - Then and Now" and have tags for everything. Books, Retro Posters, Comics, Magazines and so on.
Your forum looks dead. If you consolidate and encourage friends to actually create topics and reply to yours it will look better. When people see that all topics are made by the same person, they're less likely to post. You would be far better off making some deal with a few people here on FP. Post for Post thing to make new topics and reply to ones you've made and you do the same for them. At such an early stage, you can do all the moderating yourself. You don't need more mods until it kicks off.
The worst thing about paying people for such a new forum is that you can't go back on it. They'll leave if you stop paying them and new mods will expect to be paid. You want people who love being part of your community and want to help it. Start as you mean to go on.
🙂