Not a massive list, but a few:
Old Trafford, Manchester - Used to be a season ticket holder and also saw England play there during the Wembley rebuild
Valley Parade, Bradford - Have family there and managed to see United play there while Bradford City were still in the Premier League
The Racecourse, Wrexham - My local(ish) team so seen Wrexham a fair few times. Also saw Wales vs England in an under 21s tie there
Llanelian Road, Colwyn Bay - Another local(ish) team. Saw them play a promotion play-off there
Millennium Stadium, Cardiff - Manchester United vs Wigan Athletic, League Cup final and vs Newcastle United, FA Cup semi-final
St. James Park, Newcastle - England vs Azerbaijan in a World Cup qualifier
Anfield, Liverpool - England vs Finland in a World Cup qualifier
Frankenstadion, Nuremberg - England vs Trinidad & Tobago in the 2006 World Cup
(New) Wembley Stadium, London - A fair number of England games, Manchester United vs Everton, FA Cup semi-final, vs Wigan Athletic, Community Shield
Cardiff City Stadium, Cardiff - Women’s Champions League final, Lyon vs PSG
By this metric, I am also a worse Robben.