I am a core maintainer on the KEDA HTTP Addon project (https://github.com/kedacore/http-add-on). It's 100% written in Go and we are a small group looking for additional contributors. I believe there are interesting challenges ahead of us that will be enjoyable to solve.
If you're interested, please reach out. My username here is the same as my username on the Gophers and Kubernetes slack groups.
(You're of course welcome to just go pick up an issue in the repo if you'd prefer)