Lots of recommendations but it comes down to how you want your system to sound.
So far the best sounding resistors to our ears are the Audio Note non-magnetic silver. Then the AN copper. Vishays are more dry sounding in comparison but very pen and clear. They don't really add any body to the notes but may work best when paired with tube equipment. Metals are not to our liking. Amtrans are also nice sounding especially for the price. Used to use Caddock but the Audio Notes were much better sounding to our ears.. You should try go up in value so for 1/2 watt go to 1watt, etc.
Happy Listening