Reddit mentions of Growth Modeling: Structural Equation and Multilevel Modeling Approaches (Methodology in the Social Sciences)

A faculty member at my university put together a workshop and actually included stuff about implementing lavaan for Latent Growth Curve Models (LGCM). Notes for that workshop can be found here. I would also second using anything by Grimm. I took a class on LGCM and it was taught with this book by Grimm and it was extremely helpful.

I have become the go to person in my lab (psychology) for using lavaan and have helped my peers become more familiar with LGCM. If you have any specific questions, or would want someone to take a look at your code, I would be happy to! I really enjoy this type of stuff. Google and the lavaan Project will be super helpful! There are plenty of additional resources out there!