I'm on an exclusion diet for some time. I have found loads of amazing recipes that have soy or tamari or miso paste in them but I can't eat these. Does anyone know of something that's similar?
There are actually products that are Soy Free Soy Sauce. You can also find recipes to make your own. This Recipe for Soy Free Soy Sauce Substitute has great reviews and sounds pretty good. It is made with bouillon, molasses, balsamic vinegar and seasonings.
A lot of people swear by Bragg Liquid Aminos as a soy free soy sauce alternative, but it actually contains soy.
You can also ferment your own chickpea miso, but it takes about a year. There are instructions in The Art of Fermentation by Sandor Ellix Katz.
Both Maggi and Bragg's are made from soy, so don't use them.
The closest things that I can think of Worstershire sauce or fish sauce ... both give salt, but also bring other qualities that might not be desired. Fish sauce in particular has a much stronger flavor that can overwhelm dishes in large quantities.
Another common replacement is black bean pase thinned with water, but every recipe that I've found suggests that one of the ingredients in it is soy sauce. (I don't know if they're all copying from the same recipe, so it might be possible that there are commercially made ones out there without it)