Live synchronisation between Auth0 and External Systems

Hey community,

We are looking for a solution for keeping the external system (Target System) in sync with the Auth0 user base.
In our scenario, we have a few legacy systems which can change user attributes in our Auth0 tenant. We’d like to set up a mechanism that allows Target System to obtain new changes from Auth0 close to real-time and with the best efficiency.
We found a couple of solutions (Log Streams, Auth0 Webhooks Extension, Auth0 Users Export Job API) but those are not so mature and performant as we expect.

Are there any other ways to achieve the desired results?
Could you please assist us in moving things towards a better solution?