If you’ve not already done so have a look at the thread of armour and where to find them, should be pinned in this forum I believe. Also a quick search on both should reveal the answer you seek. There’s many other options than those 2 also depending where you live. My preference would be to spend more on the better armour, that is known to clear by any Garrison over the controversial one that has only cleared by a few and is more work.