Causes I care most about are MAPS, SENS & Ocean Cleanup. Effective altruism is close to my heart.
I also support Archive.org & Wikipedia. As well as developers & artists I admire via Patreon/GitHub/...
Sublime Fund - Charity that makes philanthropy easy. Donate monthly to multiple charities from one place.
The Giving Pledge - Commitment by the world's wealthiest individuals and families to dedicate the majority of their wealth to giving back.
GiveDirectly - Send money to people living in poverty.