Depneds on how tanky you want to be. My khajit stamblade runs 5 med 2 light fort brass and night mother's embrace for sneakiness and bloodspawn for my ultimate heal. Works extremely well. Through CP you can cloak and hit resistance cap and still enjoy the medium armor build. If you went heavy you'd definitely be tanky af. Since summerset my hardly ever can be killed stamblade dies a bit more now...lol wolfhunter dlc will be helping with that. If you wanted to be stupid tanky ironblood is real strong but you lose mobility. My tanks run it and wow. Reactive armor is awesome as well and you won't lose any mobility like with ironblood. On top of that with a disabling effect it's a 35% damage reduction. So only hard crowd control will proc it. Reactive may be the strongest while active damage reducing set. Until the update of the new dlc sloads can proc itself while on you according to Gina, not good. But yeah totally doable sounds like you want a sap tank build that can put out some damage. And that is very doable. I've seen youtubers wrecking people with these builds and not the old sap tank builds. Just look into more recent YouTube builds for sap tanks use less health more resource and more damage. 5 heavy will probably be necessary for the way they've changed light attack damage. When you get stunned down with 3 or 4 decent players heavy armor can help you through, where as the others not so much. Best of luck to you.

Hmm glad I asked, nobody mentioned any of the sets I was looking at (like plague doctor lol). Wasn't thinking much about brass fortress, I'll give that a try with my bone pirate, and I already have some chudan and blood spawn stuff just chilling in the bank so they could be an easy change

Thanks for the replies, idk jack about being tanky lol