a search would be better than sifting thru page after page (that is, if the search function works).
I've bought from jiffyshirts and shirtsupplier on line. I prefer shirtsupplier as their return policy is (at least was) more generous than jiffyshirt and I found some minute holes in the jiffyshirt tees when I was doing the final iron (which I didn't discover until after I was done). It wasn't a lot, like one hole in about 5 or 6 different shirts. I used the Gildan, Anvil and Hanes brands mostly. Mostly I used these when I needed 21 shirts all the same theme then another 15 with another theme.
I also bought from Michaels at their 2 for $5 sale, Wal-Mart, and the Dollar Tree when I was just buying for one or two shirts at a time and didn't need to match a lot at once.