Another long legged one here (I'm 5'11"). I have a pair of Sass & Bide jeans (XL - extra long) that fit me really well. Also, some Levis with a 34" inseam fit okay (although I swear that they are making Levis shorter than they used to).

I find that most shops that claim to have long jeans only have a 33" inseam, which in my books is not long at all.

You could try googling "tall jeans". I know that a few years ago there were quite a few shops (mostly online) all around Australia that sold all kinds of long trousers.