I've likely got a few that I'll never used again, some of the more obscure models from the 50's and 60's haven't been out of the drawer in a long time.
There's a few doubles but those are different variations of the same tool, Shimano has quite a few themselves.
I have a few without axle holes, meaning you have to pull the axle to use the tool. One is an early Suntour two pin. There's four or five Mailard/Atom tools, and a few I have that I've likely never used because they got handed down to me over the years by older guys who retired or from shop owners who had doubles.
I know I don't have all the single speed freewheel tools, but I've got a few oddball early ones though.
I don't think I've seen a TDC freewheel or an old Sturmey Archer in a while now, nor an old Cyclo freewheel.