Once upon a time Mogg Fanatic was able to push hard, at least harder than he is currently. I too have been looking for another 1 drop permanent to push us up to 11 or so. I keep theorizing and coming back to Goblin Guide - but it clashes so hard with the Mana denial its dumb. I guess I'm basically hoping for a good print in an eventual upcoming set.
- Things I've been looking at -
Frenzied Goblin - Very curious if this is good enough. Sure only one R per attack but it says that guy cannot block. not can't be blocked by ~.
Mogg Fanatic - A fine card. Meta doesn't have enough 1 toughness guys.
Goblin Grappler - Doesn't do anything alone
Goblin Soothsayer - Probably too slow / Chieftain better
AND of course being your average 1 drop red creature they all die to Engineered-Plague sans Lord.

