First, I believe Lineage OS supports the Photon Q and will bring the OS up to date.
As far as a phone I have the LG F3Q. Upsides: I can go 03 days without charging it with actual usage (browsing, torrents, calls, messaging...I mean full usage). Also has an ir blaster, removable battery, keyboard, and microsd slot. Downsides: It is limited to android 4.xx, it has low ram, and has low onboard storage. I got around the storage piece by linking to an ext3 partion on the microsd card and transfering system apps and installed apps.