What exactly are you trying to do? If you need to build up a worn shank, you can start with something like a 7024 or 7028 rod, which is a low hydrogen high deposition rod. They weld like a very "wet" 7018, so they're only good in flat or horizontal welding. Once you get the profile built back up and shaped as needed, you can then run a hard facing rod over it.
For a hard facing rod, you don't need to go too crazy. Indeed, it's probably overkill on a TLB anyway. I'd look at something like a 42405 Supercote, which is pretty cheap as far as hard facing rods go. Every manufacturer seems to have their own designations and proprietary blends for hard facing, so if you can't find Supercote (which is available on Amazon, btw), you can find something comparable at your local welding supply store. Basically, you're looking for a "cheap" hard facing rod with good abrasion resistance and okay impact resistance.
Keep things clean between passes. You can get away with a lot when you're just sticking things together with 6011 or 6010 rod. When you're trying to build up and hard face a part, proper surface prep, good technique, and heat control become much more important.
Also note that hard facing rod runs differently than structural rods. You need to use a longer arc and (unless the hard facing rod is marketed as crack-free), you'll likely notice a fine cross-hatching of cracks in the surface. That's normal and, in fact, desirable. On large weldments with a lot of heat, we would actually mist with water after depositing to encourage those small check cracks. They relieve internal stress without affecting the integrity of the coating.