My wife is a vegetarian,so I don't use meat to give my sauces more flavor,but I do use some losalt bullion,
What else can I use to richen my sauces(I also can add chicken broth).
No you can't use chicken broth in order to cook for a vegetarian. If you go to health food stores or whole foods you can find a variety of vegetable bouillon or even a vegetarian version of chicken bouillon.
These things are easy to find depending where you live. You can also order them online.
It is rather easy to find depending where you live.
I experiment with different misos. south river miso company makes some interesting flavors, and i believe they are available nationally.
My husband's vegetarian, well, pescetarian, and we've been together 5 years. One of the wonderful standbys for upping umame without meat products is Braggs liquid aminos. Low sodium, quite healthy, and a real flavor kick. Also, if you want to go in a cheesy direction for flavor (beyond cheese), nutritional yeast flakes are great. Just use as a flavor enhancer, and watch the salt if you do.
The Bragg's suggestion is awesome, I love that stuff! But it's not a low-sodium product. The serving size referenced on the nutrition facts label is pretty small (1/2 tsp) and shows 160mg sodium per serving. By contrast, Kikkoman soy sauce is 920mg per 1 tbsp serving. It'd take six 1/2 tsp servings of the Bragg's to equal 1 tbsp, and that 1 tbsp serving would be 960mg....more than the soy sauce.