Code:
* Your warranty is now void.
* We are not responsible for anything that may happen to your phone by installing any custom ROMs and/or kernels.
* You do it at your own risk and take the responsibility upon yourself and you are not to blame us or XDA and its respected developers.
"This is a user friendly thread, all your Important suggestions are important to us and will be taken into consideration.

CLEAN FLASH :
Download the Build you want to flash(VANILLA).
-Reboot to recovery
-Take Backup (Not Necessary)
-Flash your firmware(If required)
-Format Data
-Reboot To Recovery
-Wipe System, Vendor, Cache, Dalvik Cache and Data
-Flash the ROM
-Reboot

DOWNLOAD

-Lineage OS
-AOSP
-Superior OS
-AOSiP
-DerpFest
-Pixel Experience
-Extended UI
-Havoc OS
-CrDroid ROM

Source
Device tree j7elte
Projekt Sakura source
XDA: DevDB Information
Project Sakura 5.x, ROM for Samsung Galaxy j7 (2015)
Contributors
Flominator, danwood76, dariotr
ROM OS Version: Android 11
ROM Kernel: Linux 3.10.x
ROM Firmware Required: Stock Nougat 7.1 for your variant.
Version Information
Status: stable
Current Stable Version: 11
Stable Release Date: 2021-11-28
Created 2021-12-28
Last Updated 2021-11-28