This is something I've struggled to find a solution for. Do you have any suggestions? The best I've come up with is a safe with enough information to provide access to my password manager, but obviously this makes me pretty uncomfortable. I could hand it over to a lawyer as part of my will, maybe?
That coves these kinds of cases reasonably imo: you can invite somebody, and then that person can later request access when that's necessary. That sends you a notification, and they're granted access if you don't object within a preconfigured time window.
Obviously there's some trust required and/or a sufficiently long window, but it's one of the better solutions I've seen.
https://www.locksmithledger.com/safes/news/53071785/liberty-...