You probably already have, but if not you'll certainly want to take a look at what @patio11 and @tptacek did with Starfighter and reach out to them for some interesting viewpoints on the matter.
Thanks, I had heard about Straighter but never really read much into it. It looks interesting, will definitely take a look.
I'd recommend checking out your local professional associations. IEEE and ACM have some options:
https://www.ieee.org/membership_services/membership/discount...
https://www.acm.org/membership/insurance-programs