Unlike Blog page Home Page should be eye catching, for this we have make such styles on posts which attract the readers. To build such atmosphere you have to add blocks
for this navigate through Appearance > Widgets and add widgets into sidebars.
Here sidebars acts like post container while widgets performs as post formats. as shown in below image
Header Post Grid should be added into homepage header sidebar, while post Grid 1 and post Grid 2 sequence could be as per need.
after adding widgets into sidebars this should look alike
final preview would be like this after widgets