You need:
KeepassXC/com
KeepassXC/org
KeepassXC/net
maybe KeepassXC/pw as a "Joke Domain" and the same with "-". Since .com is currently taken it is one less.
I calculate now with 6 Domains, where we end up at around 70$ a year, if we add uncommon extensions or Country specific (in this Case I choose: .info, .biz and .eu) we are still at around 92$ a year. These are not even 1,2K$ a year. Idk what "weird" or uncommon Domains you own. But a basic Brand Shield with these should be enough. And sorry, I do not spend Money at Domain-Suckers/Re-Sellers, I sue the Shit out of them if they infringe my Brand.
@gremlin @keepassxc Why are you being so authoritative 😅? I get that you're trying to be helpful, but you're coming off very rude. Please be kind.
I agree with the Keepass admin that it probably isn't the best idea to spend all the donation funds on domains.