I think most blades are pretty much the same, pretty standard. yes there are some really older ones that are longer and some customs and there were some specialized ones like the DD Dwarf.

I find the slight difference to not make any difference to me. The weight and thickness and grind and width of the blade have much more of an effect.

The only real departure there are traditional Japanese straights which are pretty short but of course that's a whole other universe in shaving.