Out of that list, I’d go with the Insignia. Solid cars that are relatively cheap to maintain

There’s an entire laundry list of why these cars are firmly in the “avoid” category. In short, lots and lots of problems with the engine and electronics. Ever heard “there are few things more expensive than a cheap German car”? That definitely applies to the A’s.

I work at a shop that sees a lot of different cars.

Do not get a GLA/CLA. They are terrible vehicles.