Looking for resources on a sideline of the Caro Kann, 1. e4 c6 2. Nc3 d5 3. Qe2 [fen &quot;&quot;]
1. e4 c6 2. Nc3 d5 3. Qe2 d4 4. Nd1

I find this variation very interesting and would like to know whether it has a name, is in some books, or maybe just annotated games. It is played mostly by Russian players: Aleksei Pridorozhni, Vadim Zvjaginsev, Semen Dvoirys are listed with the most games and very convincing scores.
I have several Caro-Kann books and none mention this line.
In general, http://www.kenilworthchessclub.org/, and https://www.chessgames.com/ are good opening resources.
When you're analyzing rarely played lines it's best to just use a database and an engine. That's all I really use anymore anyway. Occasionally, I'll look at book if I don't understand a particular move but mostly it's database and engine.
White is getting crushed in this line. After 4. Nd1, e5, black is at least equal. I don't know why you'd want to play it.  Something like the 2 knights or the KIA would lead to similar positions but are better openings.