First Eagles game at the Linc

Long time board member from way back in the old message board days.  My Wife and I are coming in to town for the Eagles/Steelers game Dec 15th and my first eagles game at the Linc.  She's a Steeler fan so we decided to see Eagles/Steelers this year in Philly and then Steelers/Eagles in 4 years in Pittsburg since we have never been to either city.  We just snagged airline tickets and a hotel in the historic district near penns landing and are looking to grab game tickets in the next week or so.   Is there a particular section we should be aiming for and are the resellers ticket website the best option for reasonable prices (seatgeek/ticketmaster etc)?    What is the best tailgate area/bar before the game to hangout? Someplace for 2 adults to chill and pregame (with one of them wearing a Steelers jersey lol)

Also any particular sights we should see in the area, other than the obvious museums/historical sights?  We're gonna do the meme/touristy thing and get a pats and genos cheesesteak to compare and then get a good cheesesteak at angelos or johns pork roast while in town too.   Anything else we should know or any tips for first timers?