What type of grain are you looking for, straight, highly figured or what? Several names come to mind but I find that most only deal with one basic type of figure. If it is a large Mag. I would go for quarter sawn staight grain with as much color as possible. If a non mag. I go more for a crotch figure.
If you are going to have someone else do the stock work have them approve the blank. If you are going to do it yourself remember grain flow in the grip and all the way to the fore end tip. Bad day if your fancy new gunstock cracks in the grip area or worse changes point of impact with weather changes because the grain flow in the fore end is a mess. Seen both and not a good day for either owner.