Hi Paula, welcome to IIS
Either a 8" or 10" dob of any brand will be a good purchase for a beginner. Plenty of aperture to pull in all that light. Now, it's just a matter of what brand and what extras you want. But more importantly, how much are you willing to spend on it. You can get goto dobs which will track objects you look for, open (truss) tube scopes, closed tube scopes...all sorts of scopes within your size range and above.
So, how much are you willing to spend on a scope?? That way, we can advise you more closely as to what is available.