Hello, there!
Unfortunately, the Agama-blue theme, for now, has the Grid layout only. We already work on the theme update in which we will include more layouts.
Until that happens, there is a workaround to solve that:
1. Set your front page as a static,
2. Install the Elementor page builder(If you have not already installed it
) and the GoldAddons for the Elementor plugin.
3. Edit your static Frontpage with the Elementor, and insert your Blog post to it using the GoldAddons for Elementor’s “Blog” widget.
Also, instead of the Agama-Blue theme, you can try to switch to the Agama theme which you already has installed since it is a parent theme of the Agama blue theme.
The Agama theme has mostly the same functions as the Agama-Blue, and also has the more Blog-layout syles.
Regards