Try Almat
I'm biased, but take a look at Almat Flying Club at Coventry airport. I trained there myself, and still fly with them. There's a great team of instructors and a good ground school facility if you need it. Importantly, the costs are significantly lower than many similar schools if you're prepared to learn in a Cessna 152 instead of something larger. If you do want to learn on something bigger, you can choose between C172 and PA28, also at very competitive prices.
Cheers,
David