Welcome to LineageOS ROMs, this site is listing the official changes and downloads for LineageOS and many other useful tools, such as CF-ROOT, G-APPS (Google Apps), Recoveries (TWRP Recovery, CWM Recovery) and much more. 
LineageOS does not develop official ROMs for all brands and models. In case you do not find a ROM for your device you can find Unofficial Ports in other sites and check if there is any available and compatible ROM for your device.
As the implementation process is diferent for each device, and if you need help while implementing the ROM, you can reach us at our Twitter profile @LineageOSRoms. 
Happy flashing!