Font Freak is a dedicated repo for Bengali and English fonts for Android. It is aimed at making the process of changing fonts easy and effortless so that you can move from one font to another whenever you want. The font packages can be used with Magisk Manager (ROOT) or a third-party recovery like TWRP.
Font Freak is maintained and developed with community feedback through a Telegram Group. All font packages are open-source and their source code can be found on Github.