Cor blimey, there are more kinds of harmonica than you can shake a stick at!

I just had a look at the websites of Hohner and Suzuki. The only chromatic I saw without a slide was an orchestral harmonica that seems to be especially for glissandi. I think it's probably too long for a standard rack. I didn't know there were such things as orchestral harmonicas, or the specialty harmonicas for ensembles. Some of them look quite interesting.

It seems that some models of chromatics are only available in C and none of the ones I looked at were available in all twelve keys.

I find all the different models somewhat overwhelming. It seems one could spend a lot of money on harmonicas.