worchestershire substitute

Another option is malt vinegar, molasses and tamarind extract...

I have used a concoction of soy, fish sauce (or anchovy) and just a tad bit of brown sugar with good success.

Depends on what you're making. Sometimes soy sauce can be used as a sub, and sometimes you can eliminate it without it effecting the recipe

This recent thread might help: https://food52.com/hotline/26641-what-s-a-good-substitute-for-worcestershire-sauce