Question [Q] Looking for a way to add information to contact entries automatically

So, I am looking for a way to automatically add the date and time to contact entries that I enter on my phone. Whether this is by an app, or by some third party or something. My problem is, that I have a bunch of contacts, that I don't know when they were added or who they are (lots of long nights). While I am sure it may be hard or impossible to retroactively do this, I want to find a way to do this in the future.

I am not sure if this would be able to be done by an xposed module, (take the date and time and add it into the description field) or if there is a third party contact manager that would be able to automatically save to my Google account.

Does anyone know of something like this? Or any trusted third party contact managers that may be modular, or extensible.