LoL, I've found that whatever type of knife it is I think I'll never be into, sooner or later I've got a dozen of them.
I have a knife with a horizontal sheath. I like it quite a bit. It just takes up too much real estate on my belt when I'm wearing my gun holster as well. Some people get around this by wearing the sheath in a crossdraw position. I went to vertical sheaths. It's just personal taste, but the horizontal sheath definitely works well and nobody could ever tell I had a knife on my belt.
As for finding leather sheaths, there's a Wanted section in the Knifemaker's Market where you can make a post to find some sheath makers. I can't recommend any off of the top of my head, but I know that there is a group of members here who do fine work. I haven't used a Bradford sheath, but from what I've read they do a fine job on all their products and I'm sure it would work just fine for you.