Activities for 11-year-old (maybe neurodivergent)

Hey everyone. I don’t live in Boca — or even in the US — but I’m trying to help my little brother.

He’s 11, and my family moved to Boca about 2 years ago. The problem is… he still hasn’t really made any friends. He’s a sweet kid, just introverted and into things that other kids his age don’t seem to care about.

He’s obsessed with history, especially WWI, strategy stuff, documentaries, maps, all that “tiny professor” kind of energy. Poor kid is way too much like me for his own good.

I’m on the spectrum, and honestly I strongly suspect he might be too, but my family is very much in denial about anything like that. They keep trying to push him into martial arts and sports groups, but I really think he’d connect more through nerdy/artsy interests instead of competitive physical activities.

So I thought I’d ask here:

Does anyone know of any good groups, clubs, activities, or communities in Boca for kids like this? Maybe D&D groups for kids, board game clubs, history programs, art spaces, STEM clubs, anything along those lines?

I just want the little guy to find his people. Thanks in advance.