I use BitWarden for this. If it's just you and a partner, their free version works. If you have a larger set of people you want to share sets of credentials wit

I use BitWarden for this. If it's just you and a partner, their free version works. If you have a larger set of people you want to share sets of credentials with (up to 5), the family version is $1/mo. It's not exactly the same as LastPass' "contingency plan" feature (since you're simply sharing some credentials all the time), but it works well enough for me.