Danny Van Kooten did an interesting experiment. He completely rewrote an Laravel app to a version in Go. In a post on his blog he shares some details about his project along with some benchmarks.

Earlier this year, I made an arguably bad business decision. I decided to rewrite the Laravel application powering Boxzilla in Go. No regrets though. Just a few weeks later I was deploying the Go application. Building it was the most fun I had in months, I learned a ton and the end result is a huge improvement over the old application. Better performance, easier deployments and higher test coverage.

https://dannyvankooten.com/laravel-to-golang/