There's a gallery thread about tank tops. Not all white, not *many* white at a quick look, but I'm sure there's some in there.
I do have a thing for tanks that are cut so deeply it's basically a bit of fabric over the center of the chest, revealing most of the pecs and armpits. An instructor at the aerobics studio I attended in the 80's wore those a lot, he had a great hairy chest.