Depends what you want. Something black and round, to get through an MOT, buy the cheapest shit you can, but do avoid Autogrip, as they will kill you after you've pulled a couple of mm off them.
If you want something that actually grips well, Michelin Pilot Sport 4 are my tyre of choice on the Omega, hence its what TBE sits on all round. Good from new all the way to the legal limit, and a completely different league universe to the budgets. Wrong side of £100 in 18" form though, probably under £100 in 17". No idea able that odd 225/55/16 size, which was always less common, so might bump price up.
In the mid range, Kuhmo Ecsta Sport (31 currently IIRC) is a good tyre, though lacks feedback if you like to drive in a spirited manor, but better than the budgets by some margin... ...but pricey, so I'd pay the bit extra for the PS4