[boulos]

Depending where you're based, there are some very good partners that can help here. It really depends on what level of cooperation you're looking for from "here, you do it" to "just give us guidance along the way".

https://cloud.google.com/solutions/migration-center/ is a reasonable jumping off point. Sorry if that didn't come up more clearly.

[lnkmails]

We have talked to Velostrata and some other GCP partners. It's hard to assess their usefulness. Unfortunately, they don't have much of open source credibility. Picking by case studies seems like picking out a car by reading advertising material.