Which speakers pair well with Peachtree Audio Nova 150?

So far I've only tried the Nova with Vintage Klipsch Kg2's which have a passive radiators on the backsides.  Streaming with a Node 2i.  Connected via digital coax which bypasses the dac in the Node 2i and uses the dac in the Nova.  I bought the Nova 150 to replace my Vintage Denon DRA-25 integrated which sounds great paired with the Kg2's + Node 2i.  However, rather than send back the Nova before the 60 day trial period was over... I decided to try and live with it.  So, now I'm considering different speakers and also put the Nova up for sale on here.  The Nova is the first class D amp I've tried or heard before.  I've only ever had Pioneer + Pioneer speakers growing up.  Then the second amp I bought was a Yamaha + Yamaha satelite speakers (box home theater kit).  Third was the Denon + Klipsch I inherited from my Dad.  Then I tried the Peachtree + Node 2i with my Klipsch speakers which has not been a good pairing.  All advice, suggestions greatly appreciated.