What’s the Best Tool for Managing a Backend Monorepo?

I'm trying to decide on the right tool for managing a backend monorepo. I have a few requirements, including good Docker support since we rely on it for both development and production. I need separate package.json files for each microservice and want to keep shared libraries in one central repository. So far, I've looked at three options: npm workspaces, which seems okay but I think there might be better choices; Nx, which prefers a single package.json, and seems more frontend-oriented; and Turborepo, but I'm not sure how beneficial it would be if Docker caching isn't a factor.