I would also look into Cardas. Identify an appropriate price range.
I look at wise in two ways: 1) quality (sonically)… overall sophistication of design and execution, and 2) sonic character.
So, as the first attribute gets better… the sound is more refined, less colored… But, that does not guarantee, they will be a positive influence in your system. This is where the system part comes in… why you must try them
Cardas is one of your best bets because at each investment level they are designed to perform with components appropriately. The generally avoids the problem I have experienced that the wire made the system sound worse.