Sync Chrome passwords with Apple iCloud Keychain
I've created small tool to deliver your credentials from Chrome into macOS keychain. Here is a page on github https://github.com/nntarasov/csv2keychain

The program interacts with macOS command-line utility called security with option add-internet-password. First of all you have to manually export credetials from chrome into .csv file. There is such feature in Chrome. So, the idea is very simple - the list of credentials from file is being added into system keychain via security