Speakers are a very personal choice, they are the voice of your system. Listen to everything you possibly can before making a decision. Then search Audiogon by zipcode and see what is available used in your area. You will need to look at speakers that are somewhat efficient with an integrated amp like the VT80. If the speakers are not efficient enough for the amp, the music can sound thin.
I have an Audio Research Ref 5se preamp with a Ref 110 amp. My speakers are Sonus Faber Elipsa SE which are 92db. They are just superb. Sonus Faber is a great match with Audio Research and are both owned by WOM.