...
Autofac is an open source DI container, that integrates well with net core. It provides almost the same features as Castle Windsor, and is well documented. It has native support for net core, and it integrates seamlessly with the native container. Modules are the replacement for Windsor installers. It has assembly scanning and you can register named instances. It has better performance than Castle. With this in mind, I went with this container because how easily it was to integrate into the project.
Lamar
Lamar is Structuremap for net core. I did not review this container.