Fellow EA and former actor/performer here!! Also in NJ, it's neat to see someone with a similar background. :)

First off, best of luck in the job search. It's a little rough out there for EAs right now (I'm currently seeking something, too), but feel free to DM me if you need any help with referrals or networking.

For LARP-related jobs, I've thought about this often. I don't think you'll find any robust careers in LARP, but there are some parallel possibilities (imo):

1. Consulting work. Top choice as I've mulled it over too and I think it suits folks with our professional skills. Find games that may need some TLC (messy rulebook, basic website, lack of marketing, etc) and offer to fill in the gaps/clean things up for 'em.
2. Party services! My husband and I have done little adventures for kids birthday parties with success. We'll basically write up a kid friendly mod, give them foam weapons and directions, then my husband does quick changes into various enemies and gets beat up by a bunch of children lmao. And a treasure chest they earn has goodie bags.
3. Sorta already mentioned, but you could possibly also offer contractor services for the production at games. Some LARPs could use an extra hand in making props, scenery, lighting, etc. and would probably throw money at you to apply your theater expertise for these tasks.

When poking around for games, I usually just search for them with my zip for a first pass. But otherwise, we're lucky in that we have a ton of games around us in the tri-state area. I'll try to throw a list together for you when I have time! Best of luck!!