List of Android/Linux Alternative ROMs

Forks, distributions, alternative, unofficial or custom ROMs.

• myriad of ROMs (usually built on top of AOSP) provided by various users at https://forum.xda-developers.com/
• lineageOS - https://lineageos.org/ - spiritual successor of CyanogenMod
• /e/ - https://e.foundation/ - name hard to find
• grapheneOS - https://grapheneos.org - privacy and security focused, Pixel only builds
• Replicant - https://www.replicant.us/ - the name just like from Jean-Claude Van Damme movie - a fork from GNU, as much freedom as you can imagine including firmware - as usual with proprietary HW, only old devices supported
• CalyxOS - https://calyxos.org - privacy focused Android distro
• postmarketOS - https://postmarketos.org/ - Linux distro
• SailfishOS - https://sailfishos.org/ - Linux + Qt, not entirely open source, unfortunately only a couple of devices supported. Looks good, I’d buy it
• here is the more complete list of Android based ROMs - https://github.com/musabcel/android_rom_list