Choose Blog Layouts

Under the customization options, you can find various content layouts for your blog archives. These include:
Customizing ▸ Blog Archives ▸Content Layout

1. List Layout
2. Grid Layout
   i. Two columns with or without sidebar
   ii Three Column Layout (With or without sidebar)
   iii. Four Column Layout (With or without sidebar)
3. For sidebar settings, you can go Customizing ▸ Blog ▸ Sidebar Layout