There are a number of WordPress free themes available that can be used to create a blog. Some of the more popular themes include Twenty Seventeen, Bootstrap, and Divi. Ultimately, the best WordPress free theme for blogging is the one that is best suited to your needs. If you are just starting out, a theme like Twenty Seventeen may be a good choice because it is versatile and has a lot of features.
If you have experience blogging, you may prefer a more minimalistic theme like Bootstrap. Ultimately, it is important to choose a WordPress free theme that suits your needs and style.