I went through the same process starting back in September. After reading hundreds of posts and asking hundreds of questions together with "Reids Reviews", "Erwin Puts" and those boring ass Leica pdf files (I read them all), I was left with two viable directions based on advise from a true lens guru. He said, I could aim for a “lens set” or a “lens collection”. He allowed me to learn from his mistakes and now I’m 2/3rd complete. In order of precedents, I went with 28/50/21. I have only the 21 still on my wish list. If I had to do it over again, I would also consider 24/50/75.
BTW: All the reading in the world isn’t going to mean a lot until you have at least two lenses. Otherwise, it’s like trying to analyze a bar chart containing only one bar. Your second lens will allow everything to start falling in to place. Ok, there is no right or wrong answer here although I personally like the direction I’m heading, aside from being broke!
Regards,😀