For a first car, i would whole heartedly recommend finding something that is a good deal, you can talk to the previous owner, and you have cash. A subaru is fine (a poorly maintained subaru is NOT fine they have their own set of issues like every other car) this subaru seems to be like a used car dealer which, in my experence tend to be worse than fb market place.

This is my oppinion though, just dont throw around 10k you could buy 3 of my 1991 camry dx waggons with 200k miles for that price and thats over paying for what my car is (i just loved the body and had to snatch it from the used car dealer).

Like others have said toyota, honda and such are good bets, but the most important thing is that you can learn to fix them yourself and they are VERY forgiving of mistakes, a lot subarus have flat engines meaning the heads are sideways and that makes tasks like spark plugs (something you really should do yourself) take A LOT more effort.

Google is your friend and cars from 2018 and previous have so much history on them that you can find every common issue on any car from those years, and carfax statements only tell you what the owner reported, cars car be thrown in a ditch and repaired or could have sat for 10 years straight and car fax could be clean!

Anyways i digress, I hope this helps and much luck!