Free Theme for a Blog

[https://wordpress.org/themes/](https://wordpress.org/themes/) – sort by popular – any of those will do the job.

Okay, so here’s the thing – unless you highlight just one or two very specific things you need, it’s pretty impossible to recommend a single theme from the thousands that are available. All of those mentioned here are very generic.
I hate recommending themes, as it’s such a personal thing, you can spend an age trying to find one for an individual only for them to say “no, it’s not quite what I want”.
Bluesix is totally right here – you need to go to the theme directory and use the filter to try and find what you want. Which will exclude all the commercial ones, where there’s no equivalent search for.
Basically, consider some very specific and individual requirements and look for those. You can examine anything you find then for the other more generic things that you need.

Check out [ColorMag](https://wordpress.org/themes/colormag/).