The XDA forum Galaxy Tab S2 page: https://xdaforums.com/c/samsung-galaxy-tab-s2.4702/
You will be looking for a ROM which is an exact match for your device codename and it will generally work on that device only.
However when you find a specification as gts210ltexx it is worth further research – does it cover your device?
gts210ltexx seen here [UNOFFICIAL BUILDS] for Samsung Galaxy Tabs S2 /e/OS-R and here https://github.com/LineageOS/android_device_samsung_gts210ltexx
gts210ltexx seen here https://github.com/TeamWin/android_device_samsung_gts210ltexx.
Exynos is specifically mentioned in the above device tree. Perhaps you can use Hardware info app (Device info HW or AIDA64 app, perhaps) to determine for sure if you device has the Samsung Exynos or Qualcomm SoC.
Edit
You might see if you can confirm from your device, any of the properties found in this specific part of the TWRP device tree https://github.com/TeamWin/android_device_samsung_gts210ltexx/blob/android-7.1/system.prop
ro.boot.bootdevice=15540000.dwmmc0
ro.boot.selinux=permissive
ro.hardware=universal5433
ro.chipname=exynos5433
ro.arch=exynos5433
ro.lcd_min_brightness=0
ro.lcd_brightness=162
ro.sf.lcd_density=320
persist.sys.usb.config=mtp,adb