You can get GPS systems that upload data using a SIM. Only viable if you live somewhere with cheap roaming plans. Last I checked, a local company was selling the hardware (without sim) for 200EUR. The thing I was trying to protect was 120-ish.

I use KeePassXC. I have shared the keys with someone I trust in person in case of death. I sync by manually copying the database between my devices.

I prefer mullvad. Not only is their pricing and account system much more privacy focused, they are a European (Swedish) company and are bound by the laws of my country by default. Another European one is surfshark (Dutch) which I used before. I trust mullvad more though. They also have open source clients and had no user data stored when they were raided once before.

Edit: clarifying the reason I used surfshark. I used it back when I was in high school a few years ago, so their 3 year plan seemed like a very good price. They also supported this very obscure VPN protocol whose name I can’t remember, and my school just so happened to have forgotten to block it on their network. But I couldn’t use that protocol on Linux due to incomplete connection steps provided by surfshark, and I switched to using linux full time in the second half of my first year, so that was a waste and I just used my mobile data.