Good Surya Namaskar Routine?

I have been incorporating surya namaskar into my daily routine. One problem is that there are so many different versions of it online and I have a hard time knowing what routines are the best. Some instructions say for example that you should hold your breath during plank position and others say that you should exhale.

Would love to hear about your surya namaskar routine and if you have a good video/page with instructions I would very much appreciate if you could link it here.