Now if only they'd take some sort of action against all the spam text messages I get. I swear I get a dozen texts a week from [email protected] telling me my amazon account has been suspended or a USPS package is on hold.
My city has a nonprofit called Code for Good [1] that is specifically focused on getting the tech & design community together to help other local nonprofits. I've volunteered with them countless times and the events are always super impactful. Maybe you've got something similar locally?
It also might be worth developing a program yourself if you're passionate enough about it. There are a few dev shops in my city that run their own charity projects every year where they invite nonprofits to submit proposals for the work they need done, and then the shop picks a few projects to work on for free. Those seem to be super popular as well.
I'm with you on the support being sub-par, but the whole vetting brands (A2P) thing has nothing to do with Twilio at all. It's entirely forced by an industry group called The Campaign Registry. I don't know the last time you tried to create a brand in Twilio but they support the entire process in their UI these days, but the nightmarish API you're talking about is entirely an invention of TCR, not Twilio.