On this Martin Luther King Jr. Day, I can think of no more appropriate question to ask then "With Whom Would Martin Stand?" I believe he would stand with those working to save our planet, those fighting for democracy worldwide and at home, the champions of the marginalized, and those fighting against ignorance and hate, There are too many organizations that fall into these categories to list in a single post. I think a great place to start is the article "19 Resistance Organizations at the Forefront of the Anti-Trump Move." The organizations listed in this link are primarily political organizations. I'm sure that if you reading this blog you have, or know of, many organizations not listed. Why don't you take the time to add them in the comments to this post.
Stand with Martin. Join an organization. Work to bring about change.