I agree with Sierrasparky. There are variables to consider.
Locally our POCO allows grounding electrode connections in the meter base (some don't) and the bases I have seen have a grounding electrode connection on the neutral buss so it's kinda a no-brainer here.
If you can't bond from the meter socket, one option would be to install a grounding electrode conductor from each service disconnect,
There are a few jurisdictions that ask the the grounding electrode conductor be connected at the weatherhead. Code permissible, but again POCO may have a say.