I'd be really curious where some of these wild microbes can be found so we can repopulate them. Every time I brush my teeth, use dish washing liquid or really

I'd be really curious where some of these wild microbes can be found so we can repopulate them. Every time I brush my teeth, use dish washing liquid or really any man made substance with a lots of ingredients I also wonder if I'm accidentally killing off my skin/mouth/gut microbiomes. Not worried enough to only use water (not that tap water can be fully trusted either....)