Where do health plan leaders hang out?

Hoping to get some advice from the community. Our analytics & AI company is targeting health plan leaders, especially MCOs and community health plans (CIOs and the IT org are our champions, but COO / operations, provider, and CFO part of the orgs feel the pain of the problems we solve). I feel like this community is a lot of hospitals and providers. Where do the health plan / health insurance folks hang out on Reddit or in general on the internet or in person? LinkedIn seems kind of sparse also. Thanks in advance for the advice!

Edit: /healthinsurance would be the obvious sub but that is more on the patient side, patients trying to figure out health insurance coverage and cost sharing...