You need to go audition other surround speaker systems besides the Bose you have already heard & determine what you like/ don't like
Basically though, a small satellite speaker w/ 3" drivers or smaller is not going to compare to a speaker w/ 5.25" midrange drivers or better like Emotiva ERM-1 or Tweak City Audio WAF-1, or Paradigm/ Energy equivalents, etc.. Most Internet Direct companies have 30 day return policies. You are out shipping costs if you return.
Keep in mind, if you like the looks of "cute" speakers, you will get "cute" sound.
Sub considerations in your budget will likely be a 10" version, of which there are many options out there.