Need better way to audit which teams and users have been assigned to which boards

There is currently no viable way to quickly look at team and user assignments across multiple boards. There should be an export or a quick view to compare. We have many boards that we want to standardize to allow certain teams and users to be selectable and any time a team is updated, merged, or added, it has to be propagated to all of them and there is no way aside from trial and error to see which teams were added to which boards.