>>8645864
All you can expect from merges is style bias and different levels of knowledge dilution. Base, one or two of the others and WAI cover just about every use case other than really niche stuff. I can give you some of those niche ones:
>hsUltrahdCG_IllEpic - heavy 3D bias, helps with Koikatsu/DoA/Blender looking stuff (with lora/artist tag)
>pornmasterPro_noob - uncanny valley half-realism, for setting up img2img into actual realism models (unlike those it maintains most booru knowledge)
>PVCStyleModelMovable_nbxl - plastic figures that work with anime artists and loras