postmarketos would probably be the next in line for consideration: https://postmarketos.org/ https://postmarketos.org/ and then maybe ubuntu touch: https://www

postmarketos would probably be the next in line for consideration: https://postmarketos.org/ https://postmarketos.org/ and then maybe ubuntu touch: https://www.ubuntu-touch.io/ https://www.ubuntu-touch.io/ edit: list of supported lineagos devices (would have been crucial to note in the OP that only certain devices are supported; some have "unofficial" third party support as well, not listed on this link): https://wiki.lineageos.org/devices/ https://wiki.lineageos.org/devices/