To someone? Anybody?
1password has the option to give access to your passwords to whoever you choose after you die. The way it works is, you define the person and the time limit and if they request to get access to your passwords and you don't decline it for the defined time limit, they get it.
I haven't but if I did I would look at https://www.deadmansswitch.net, it sends emails to people if you stop responding.