What might be a good version of Patanjali's yoga sutra's to read?
I haven’t encountered a commentary that I can wholeheartedly recommend. Some are too obscure, others are rather shallow, and still others have a “take” on the Sutras that I simply cannot endorse. And of course, I haven’t even seen most commentaries.
However, a couple of my colleagues here at Ananda Village have told me that Inside the Yoga Sutras, by Jaganath Carrera, is the closest they’ve seen to the way Yogananda approached the Sutras. I’ve not read it, but I have confidence in my colleagues, so I’ll offer that book as my recommendation. Enjoy!