It really depends on the bow , the draw length , the string used , the point weight and the type and species of wood arrow, then you throw in shooter differences , you get the picture .
My suggestion take all the opinions of what to shoot , throw it all in a big bag , stir it up and pull out your own ideas.
Good general rule is Selfbows 5-10# under, longbow with shelf cut 5#under to bow weight , recurve 10# over , then add for fast flight , add more for longer draw and more for heavy point. Good idea to have a few of different spine and experiment what works for you.