DSGE-model example

Good evening dear community!
I am a student of Economics University and in my diploma I consider NK DSGE models with imperfections of financial markets. Since I’m just getting started with Matlab/Dynare, can anyone tell me on the basis of what work it is worth doing this analysis? Are there any good and understandable examples on this issue?

2. NK models are at https://github.com/JohannesPfeifer/DSGE_mod/tree/master/Gali_2015