You will want reclaimed to get the tightest growth rings.
@Mr. Peet had some super dense american cherry if I remember correctly.
@Eric Rorabaugh had a few reclaimed flavors but I am not sure how much he has cleaned out recently.
@Mike Hayes tears down old barns and will have pallets of chestnut oak and possibly locust from the cleanup of his barn sites. I currently am out of anything over 3/4 inch in old growth stuff until I run my mill a bit more, but will check with a buddy who reclaims houses and barns in mostly log form. His scraps will be bigger.