ahh Congrats on the New Job and have fun with your doggies.
About the tags, in the old days on Steem before there were communities... tags were the only way to search for topics and posts. They were a lot more important back then than they are now. I would say the main thing that matters besides, don't tag spam bullshit, is to make your first tag the most important one as far as how it relates to your content.
Take care and no need to respond to this comment! hahaha