Mediumish for VuePress is a Medium styled theme, built with Bootstrap v4.x. Multi author theme, search integration, categories, newsletter, TOC, Prism, 100% Github pages compatible with automatic deployment.
Mundana is a free Bootstrap HTML Template, Medium-style. It is simply amazing, one of the most downloaded free Bootstrap templates this year along with Mediumish.
Pintereso is a free Bootstrap HTML Template, Pinterest like. We wanted to reproduce the look and feel of Pinterest website making use of Bootstrap 4 cards.
Zolix HTML is a one page Bootstrap theme that can be used as multi page theme too. Featured with parallax effects, video backgrounds, sliders, animations, nice interface, multiple skin colors, Zolix is the perfect choice for any kind of project.