Recipes yes, wouldn`t post it if it was about materials
and yes I do have libraries, scribes and jewelers built in all cities but bows are only weapons I can make. Guess I was unlucky on recipes
You can also get more recipes via the minor factions. Once you get one/them to ally with you, that is one of the things you can ask for sometimes.
Also check your sovereign tree to see if there is anything in there you can work towards to get more recipes. There are for some sovereigns, don't think they all have that though.
I believe the main thing locking you down on weapons though is your champion(s). Basically whichever champions you get unlock upgraded weapons for that champion type. Are you still using just the original champion? If so, you can get more via allying with minor factions (1 champion per), finding the quest on the map for a new champion (will be a statue of a champion), and also some sovereigns have getting another champion as part of their skill tree.