My 2012 Impreza hit 60,000 miles. I have done the required maintenance except spark plugs and the inspections. Should I go to the dealer for this?

it isn't required/necessary - but, if you you can't find a highly-rated independent shop near you, dealer may be the best choice.

 

ask in a new thread and somomne may be able to recommend a mechanic, you will likely save a little money.

^ Agreed!  Try to find a reputable, honest independent shop that, ideally, specializes in Subarus.  A dealer will whip out a clipboard and try to sell you a lot of unnecessary, expensive services!  Good luck.