Observing With A 6 Inch Reflector Telescope How Do I Find The Best Reflector/refractor Telescope For £200?

How do I find the best reflector/refractor telescope for £200? - observing with a 6 inch reflector telescope

I am interested in physics since the age of 18 years, and I use this knowledge to explore beyond the dark atmosphere of the earth and the vastness of space.
I use a telescope of 50 pounds three years ago, her own, but it was very frustrating, because the use of the lens of low power due to its small aperture.

Have the type of telescope that I want to buy has an aperture of 6 inches, because I want to observe the galaxies in place of the planet.