I voted for Celtic vs Rangers because ive got to admit it is by far the most intense. I think you missed a few though mate, here in Egypt Ahly vs Zamalek is INSANE lol
Here's a Suggestion
Try Leicester City in The Championship
They're not a bad side and you get up to 10 million to spend.
You've also got Middlesbrough who are good and if you sell this guy's clause (can't remember his name) you get like 7 million to spend.
Hope this helps!