Yeah this is definitely a big issue for me as well but I am encouraged by the new Karlach datamined body and Halsin.

I am hoping, realy, really hoping these are going to be available for players rather than just one very specific NPC.
Anyway if these two bodies are available for players I think they will do very nicely for a barbarian physic.

Karlach - Female Body Muscular
[Linked Image from staticdelivery.nexusmods.com]

Halsin - Male Body Muscular