For some reason I always have trouble with Geyser on my graphene pixel, but I got it to work on my laptop.

I'm not sure whether @Alby has a minimum threshold, but you might also look into getting your organization listed on their Zap Planner feature, where users can schedule regular zaps. I know Anita Posch's Bitcoin For Fairness recently got listed on the site, which also includes HRF, Open SATs, and Brink.