What is the best way to tag photos?
Keywords and tags
Be consistent naming and tagging your photos with keywords you'll remember and use. A tag or keyword can be a phrase or a single word. Don't skimp when using keywords. Free associate to come up words that describe your photos.
What is better than mylio?
There are more than 100 alternatives to Mylio for a variety of platforms, including Windows, Mac, Linux, iPhone and Online / Web-based. The best alternative is nomacs, which is both free and Open Source. Other great apps like Mylio are XnView MP, ImageGlass, Google Photos and FastStone Image Viewer.