If you're looking at dotnet core just keep in mind that its been evolving quite a bit and can be a little frustrating when major changes happen. Though I think its starting to settle down a little. There's a lot of good documentation for it here: https://docs.microsoft.com/en-us/dotnet/articles/core/index

Hanselman always has good posts on his blog: http://www.hanselman.com/

Outside of that, we'll need to know a bit more about what you're looking at to give you better advice.