Hello Henry. I think it’s all about the Miyamoto Musashi quote “If you know the Way broadly, you will see it in everything”.
In other words, you can watch any tutorial and you’ll start to get the foundations to do whatever you want. I think you miss out on so much if you go straight to what you want to focus on, and without noticing, you’ll find yourself just copying what you see on screen and not really getting it, because it is giving you the results you are after and you’ll just imitate. On the other hand, when you know the way broadly, when you focus on learning the fundamentals, you have a solid bedrock to just go at anything, including the Archviz. So I think it is best that you watch tutorials that gives you exactly what you are looking for, after you have chewed on the solid bedrock of the holistic approaches of modeling.
I’d say even if you have some background in 3D, I suggest you start with the Blender Basics (which you have done already) Linking just in case:
https://cgcookie.com/p/library
So you can move on to CORE:
https://cgcookie.com/p/core
Press Start is more a tech demo, to show Blender, it’s not super beginner friendly. After you got a hold on the basics, you can then start watching individual courses aimed at getting some specific result, and we’ll link you up when the time comes.