It started with me wanting to support Lemmy, my Lemmy instance and Voyager. Then I checked what other open source apps I had installed from F-Droid. It would exceed my budget to donate to them all, so I chose the 10 apps that I most frequently use.

• Lemmy
• My Lemmy instance
• Aegis
• DAVx5
• F-Droid
• Feeder
• HeliBoard
• KeePassDX
• Öffi
• Voyager
• Honorable mention to AntennaPod. It was on this list, but their contribution page states that their costs are already covered.

This is just my personal list, but I thought it's a nice idea to share it and maybe others will do the same and donate to their most used open source apps and projects.