Best affordable dead man switch service for giving crypto to relatives after death?

Hello. For anyone unaware, a dead man switch is a switch that executes a task if you don't check in within X time. For example, send this email to person A if I don't login within 3 months.

I would like to send information on how to access my crypto wallets / where to find them, to my loved ones after I die. The platform would send my relatives my instructions if I didn't login in time (because I died).

Does anyone know a good and affordable death man switch service? Or a reputable platform that has a death man switch or emergency access that works similarly as one of the options?

Thanks in advance!