Monerujo, the FOSS Android XMR wallet, has a crowdfunding page here:
https://funding.monerujo.app/
Sadly it seems this site doesn't get as much attention as the CCS. You can donate towards specific future features, so take a look!
Personally I am most excited for Sidekick, which will allow you to use an extra smartphone as a hardware wallet. Read more on the proposal here:
https://www.reddit.com/r/Monerujo/comments/pe0g89/call_for_donations_monerujo_sidekick/
