Mid Suffolk might be worth watching, Tory Party in danger of losing to Green Party. The council leader has already lost her seat and I make it 16 seats they've won there so far, which is way more than any of the others. (34 seats total - previously second placed with 12 councillors)
In those wards they won so far, they are winning by HUGE margins and they aren't standing in every ward either, some wards are straight LibDem / Tory fights (no Labour either)
EDIT: 17 Seats won after 21 declarations, they need 1 more seat from the remainder, it's not really in doubt now. The Green Party have a council to run