http://www.blacksmithsdepot.com/pro...gs/off-center-tongs-usa/ubox-blade-tongs.html These look good, but I've got probably 30 tongs I've bought over the years or made and I don't have a set of them. Not saying they wouldn't be useful, and I may wind up making a set, but I really like box jaw tongs like these,
http://www.blacksmithsdepot.com/products/tongs-pliers/forge-tongs/german-box-jaw.html I've got a couple pair of them and they work great for holding the tang while forging the blade. I normally use a set of wolf jaw tongs to hold the blade while working on the tang. Also it's a good idea to have a set of pick up tongs like a set of flat bit tongs. A handy set can be made from pliers like these,
http://chriscrawfordknives.com/#/quick-tongs-from-pliers/4561064685
If you have a decent anvil, or even just a square block of steel with rounded corners you can forge your own tongs pretty easy. First set I did turned out horrible, next set was a lot better, and so on and so forth. I really like making them from cold rolled, it's cheap and easy to work and makes a good set of tongs that your not afraid to quench in between grabbing hot steel.
One thing I've done is to keep an eye on flea markets and antique tool stores and such and have picked up several old pairs. Also you can pic up old tongs and nippers and reforge the ends to suit you.
You just about can not have too many tongs. I screwed up several years ago when I ordered a couple tongs and two were wolf jaw tongs that were for way larger stock than I thought I'd ever use, but wound up needing them the other day.
Also don't be afraid to reforge a set to suit you, have several that were just not quite rite for what I was doing, a few minutes in the forge and a little tweaking and they worked much better.