I used Preston North End for a career mode in FIFA 15 when they were still in League 1 (correct me if I'm wrong). I had a blast, one of my all time favorite career modes. Daniel Johnson developed into my best player and was a lot of fun to use in midfield. PNE has my vote.
I'm going to have to echo PNE. I love the Burnley and Ajax series, and I think PNE and the Championship would be a perfect contrast to it.
You've been an underdog in the top flight in England I guess, bu the Dutch League is super top heavy, and the Championship is so even, rigorous, and roundly competitive. It would be a great storyline to watch you fight your way out of there into the Premier League and then into Europe.