Best S&B builds

Hi everyone. My dream, since I began to play rpg’s - push builds with shield (or any tank builds) to the damage limit.
I have spend about 700 hours in grim dawn, theorycrafting and just having fun. Markovian witchblade and warborn witchblade are only two builds that I tried out in that conception.
Any suggestions about another freaking strong SnB builds? First the krieg DK comes to mind. I heard about bleeding and forcewave builds…
What is your personal favourite SnB build and why?

Octavius Forcewave Tactician. If you build it correctly, it does very mediocre damage (~40k DPS) and takes damage only if you solidly pay attention to your HP bar. As I said, it has to be build correctly.