You should research to tontines, as they are somewhat related. You pay a lump sum along with a number (10-1000) of people of a similar age to buy an asset - say

You should research to tontines, as they are somewhat related. You pay a lump sum along with a number (10-1000) of people of a similar age to buy an asset - say, a property - and then you each receive an equal share of the income each year. As people die off, the income is shared across successively less people until at the end it’s only one person who receives the income of the entire asset. At the death of the final recipient the asset generally cedes to the administrating company as payment for their administration over the life of the tontine.