Yeh, but most of the ROMS are nearly identical. Here we have a some stock based and some CM/AOSP based but all are different.
It was the same with the S3, hundreds of ROMs but nearly all the same, only 1 or 2 were "proper" roms, developed and not "cooked"
There are at least 3 stock ROMS and at least 2 CM/AOSP roms here.
What exactly are you looking for?
Sony Xperia Z2