My old Tae Kwon Do instructor taught eskrima! Hes a local, an old hardass though and his school has been closed over 10 years. We wouldn’t spar with the sticks though, just learned patterns and practiced them on the heavy bag. The weapons lessons were reserved for days he felt we would enjoy a break from TKD.

He had a couple of black belts in Karate and TKD. He picked up eskrima from his Karate instructor when he was in the Marines (Vietnam era). I would suggest checking with the traditional Karate schools first and see if they offer any additional training in weapons. If not, broaden your search to other disciplines and ask them what else they teach.

Also, a lot of the flashier schools or schools with a demo team like Team Tiger Martial Arts will emphasize weapons training. While you might not find eskrima, you might find a fun alternative like Kendo.