I use ilford pan f 50 all the time and delta 100. I use d-76 and have never noticed grain in prints until after 11x17. If you go bigger than 11x17 you notice small grain in the 50 and a little larger in the 100. Use tmax 100 and you will see what grainy is.(posted 8566 days ago)Using 35mm will give you grain in large prints now way around it.
If you don't like the grain and want bigger prints go medium format.