How about donating through #lightning ?
Tor is being used by many individuals around the world who need Tor because their lifes depend on it.
Donate to Tor. They are in need of your support right now.
Donate to Free Software.
https://donate.torproject.org/
We only recommend donating cash by mail if possible (please contact Tor team regarding that).
Or you can use privacy enhanced cryptocurrencies like Monero (XMR).
Be aware when donating through Monero you still can't be sure about your anonimity in case of a store now, decrypt later (SNDL) attack, especially in the future age of quantum computing.
Expect us.
Discussion
It isn't possible to do such payments yet by default, but if you want you can contact the team to resolve your donation through the Lightning network.
However we don't really recommend any cryptocurrency related donations because of the SNDL attack vector.