Need help finding a bike?

[Dr. Boss]

Yes, im 15 years old. This summer im gonna try to get in better shape than i already am. i need to work on my legs, and also will need to get places. Im looking for a bike that can do both. Im tired of bikes with like a million gears that never work. Everytime i get a bike, it always starts to clink and instead of being smooth it is acting mechanical, and i want one that is smooth and satisfying.. so any help? im looking for one under 200$ but might be willing to go a tad over. If it has gears, that is fine, but i just want one with great quality,,, no clinking!! thanks for the help