Have you seen doctors about this or tried any treatments?

I've made some inquiries. According to all the information I've seen, success of treatment seems to correlate with undersensitivity to light or outright blindness. Since I'm oversensitive to light, that places me on the extreme end of Untreatable.

Are online classes perhaps a better option?

Not really; I was taking those classes for social reasons, not educational reasons.

Also, learning how to steer a conversation from something banal towards something interesting to you is a skill that can help deepen your social connections.

I'm actually reasonably good at this, but it has usually just accelerated the exposure of lack of common ground with whoever I was talking to.

I think meeting the right people is a much bigger problem for me than interacting successfully with those people.