Taimanov, Paulsen, Kan Sicilian dispute/confusion

Here is the Clarity:
The Kan involves no Nc6. It is either delayed or more often avoided and the knight usually goes to d7. 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6.
The Taimanov is 4...Nc6 instead of 4...a6. Now-a-days though, they separate the "old" main line, 5.Nc3 a6, from the modern main line, 5.Nc3 Qc7, referring the first to the Paulsen and the second as the Taimanov.

Paulsen Sicilian was the one with 2...e6 and 4...a6
Kan was supposed to be a Paulsen with a quick ...b5 but nowadays the name Paulsen has dissapeared and almost everyones calls it Kan.
Taimanov is the line with 2...e6 and 4...Nc6.
Obviously an early 2...Nc6 in Kan can transpose to Taimanov and an early ...d6 can transpose to Scheveningen(only if White hasn't played c4).
then what is pin variation ?
The pin variation is 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 4.Nf6 (instead of 4...Nc6 or 4...a6) 5.Nc3 and now 5...Nc6 is the Four Knights Variation and 5...Bb4 is the pin variation.
With absolutely no intention of resurrecting a dead or dying horse....lol....here's an interesting read that actually clears up my original question....http://chessforallages.blogspot.com/2010/11/will-real-taimanov-please-stand-up.html.
Another name for the Taimanov is pure Taimanov or Old taimanov....which are all distinguished by the Nge7 move. Qc7 is the Paulsen...while a6 is the Kan....
Anyone have a list of links for Sicilian middle game plans? Chess.com or other. Prefer articles to videos. I find videos to generally be slow and meandering. What I’ve done is entered into a half dozen daily games, playing a mix of opening lines. Kan, Taimanov, and Schveningen, with a Najdorf for trendiness. I know some real basic ideas like queenside attack, push d4, sometimes e4. Thanks folks.