Perhaps the most important, yet most difficult, part of learning to fly is finding a good instructor. I have experienced a number of instructors in my time, all have been good pilots, but some fall short in the interpersonal relationship bit. It’s just like life, you’re not going to get far if you don’t like your instructor. When you visit a training organisation make sure you speak to the CFI and the instructor you may be allocated to, and ask yourself “can I sit with this chap for 45 hours in a C152”. Talk to other students if possible.
The theory side you can read up yourself.
I can also recommend Shropshire Aero Club at Sleap.