Looking to tap into the knowledge of folk in here. I've lived out here in California for 13 years, when I was back home it was just Hibs, I never attended an English Premier League game. I've got a friend out here (American) who has booked a family trip to London over New Years and she wants to take in a game. Preferably Tottenham as that's her team, but at the same time if cost/ease was better for another London team or even a Championship game, she'd be open to that.
She asked me yesterday for recommendations on where to buy tickets and I told her I'd only really be able to help with the Scottish games not English.

So, any help to how she can go about getting tickets? I done a quick Google search and a 3rd party site called 'SeatPick' had them for around £100. Is this a good legit site or is there better? She said through the Tottenham official site she was seeing £550 per ticket for a game against Sunderland over New Years. I told her to absolutely not spend that as there must be cheaper sites!

Anyway, any help would be most appreciated! Thanks