Buld a current sensing device with HA integration

Hello @ All

I want to actually measure the current used or provided from a Quattro-II on its DC side towards the busbars. But it seems to be a complicated thing. Can somebody advise me which clamps or transducers to use and how to integrate them (ESPHome?) with Home Assisstant. Would be appreciated.

Environment:
Existing system with 3 phases, so I need three current readers. Best not to rewire so basiscally clip-around clamps or the like.

Thank you very much