This app contains a number of elegant love fonts that works on Samsung phones running Android Nougat (7.0 7.11) and Oreo (8.0).
Tested to work on Galaxy S7 S8 S9 Note 8 J6

How to use the fonts:
※ install the app and RESTART your device
※ Go to Settings‣Display‣Font and screen zoom
※ Choose your favorite font and click APPLY

Enjoy!