Substratum Themers Collective

[Substratum] Sai's Oreo Theme

Free

You will be required to install the Substratum Theme Engine and have root access OR the Andromeda add-on, if you want to apply this theme...

Dark Material OOS Substratum Theme

Paid

Supported Devices on Stable Stock OREO ROM are: Oneplus 3.

[Substratum] StatusBar (+extra) for Samsung DONATE

Paid

A Substratum theme with status bar icons & extras. (SAMSUNG NOUGAT/OREO"] ONLY).