In addition to what’s on the IndieWeb wiki, I’ve written quite a bit: https://boffosocko.com/research/indieweb/. If you have specific questions, there are a lot of us who can help in the IndieWeb chat or WordPress specific chat. A lot of it depends on what you what to do with it—which features and functionalities. Hopefully one or even a few of the plugins with minimal configuration will get you what you want. Syndicating content can be a bit more involved, but only because there are so many methods depending on the level of control you want for the output and what sort of results you may want back from social silos.