https://en.wikipedia.org/wiki/Subaru_Forester
https://en.wikipedia.org/wiki/Subaru_EJ_engine
Mine is a 2008 model year (made in 2007, last year of Gen 2), it hasa 2.5L SOHC Boxer 4 (EJ25, I believe EJ253 specificly).
Mine is running a 4 speed automatic transmission. (transmission is slow to shift, and a bit rough, but, haven't had any problems with it yet)
In the US, Subaru also offered a turbo 2.5L (EJ255) which is a DOCH version and uses different heads so it doesn't appear to be affected by the same design issues.
The "XT" Trim is the turbo trim. It has the better built turbo'd engine with worse mpg. Subaru stopped offering it in the US for the forester on new models though
You probably want a standard transmission since that is going to last a lot longer than an automatic, and, on top of that they started using CVT a number of years ago, the CVTs have had a lot of problems, though maybe they are getting better.
I'm not very hands on with cars, I understand the engineering of how all the bits go together and how everything works in a drivetrain, but, if I were to take parts off, I would never figure out how to put them back on again without a manual. Thankfully, I have a good mechanic, and my brother is capable enough to help with most basic stuff.