Contact management should be simple

I am hoping someone in Thurrottville may be able to help me. I am trying to figure the best way to manage my contacts.

The contacts app for Android is a complete mess and because I have 3 accounts – Google, outlook and work (G Suites) it is impossible to manage. 

I have tried a few contact management apps but find that most just organize contacts from my email accounts. I am looking for a solution that is completely separate from my email accounts that can be backed up.

What is the best method of handling contact info?

Finley