Your biggest priority is to find an instructor that you “click” with and who listens to you. Try out different schools, talk to the instructors, ask how many students they have sent for check rides and the pass rate. You need to feel comfortable and not like you’re being milked for flight time and money.
As for aircraft, fly the simplest, cheapest aircraft they have. The glass cockpit is nice, but you need to be looking outside the airplane. You’ll have plenty of time to fly the sleek, gadget filled airplanes later. Right now, you want a basic airplane with a minimum of distractions. There’s a reason that thousands and thousands of pilots have trained in the 152/172. It just works.
Good luck and have fun.