What is the best type of weight for carolina rigs and what type not tubgsten or lead but what brand and type.

Thanks

These are my favorite

 

http://www.***.com/Mojo_Carolina_Slider_Weights/descpage-MCSW.html

 

They come through cover really well

You need to take the bottom composition of the area you're fishing into consideration.  Bullet sinkers are the most often used, but tend to hang up in rip-rap or chunk rock. I prefer a RockRunner or Bottom Bouncer, but they are a little pricey. A Mojo or Lindy style work well for most situations.