Moving to a Monorepo: What should we know?

We've decided to take an approach to make a group of components into a monorepo, as components are often updated separately and that level of granularity is important. Lerna is popping up as a popular solution for implementing, but I was hoping to pick the hive-mind for other solutions and alternatives.

I just don't have an idea of the options out there in the field. Thoughts? I appreciate it.