alleghany mountain arrow woods has a good selection of hardwoods...maple, hickory, ash. ash was hard to keep straight but if you did it was very durable. hickory is really tough...and heavy. maple was very durable, heavy but very light grain so dont take stain very well but nearly impossible to break.
Forrester Hardwoods is a good source for other more exotic woods...purple heart, red balau, leapord wood, teak, etc. I got a set of red balau shafts from him recently in trade for some natural turkey fletching. The ones I got have a natural footing for 11/32 on one end and the rest of shaft is 5/16...it is more of a compression or taper almost. Shafts by themselves are over 500gr if I remember right. He has video of him shooting a few into granite, cinder blocks, concrete with no damage...haha
great guy and very knowledgeable of the more rare hardwoods for shafting in America.