I'll try something too!
Tyrogue, Hitmontop, Hitmonchan and Hitmonlee
Availability: 7 Badges
Tier: C. B in the future.
Movepool: Varies
The three hitmon brothers deserve a mention! Tyrogue itself is not all that surprising. It gets 4 moves, all of the normal type. While he can get through Ghosts with Foresight, he's helpless against Rock and Steel types since there's not fighting TMs available for it right now. Getting Tyrogue is not an easy task either, since you have to hunt for a Dunsparce first, and then trade it for the a Tyrogue. Tyrogue can be a pain to raise. The reason for that is that it can evolve into 3 different pokes, and training it in the wrong place might evolve it into something that you didn't want. Each of the Hitmon got a niche though:
Hitmonlee: Is the attacking one of the 3. Nice 120 base attack, "decent" speed (When compared to the other 2) and the two of the most powerful fighting moves available today: Close Combat and Hi Jump Kick. Unfortunately, that's it for Lee, and outside of Pursuit and Thief, it doesn't get a lot to hit Ghost types.
Hitmonchan: Hitmonchan is weird. It's supposed to be the more defensive one, but Hitmontop is more defensive than it. Hitmonchan deserve a mention though cuz it gets the best coverage out of the 3. The 3 elemental punches + six priority moves. Hitmonchan is the way to get the elemental punches into a lot of pokemon by breeding. It's ability Iron Fist helps, giving some of it's Punch moves a bit more power. ost of the time you're going to wish it was faster though.
Hitmontop: It's the dancing more balanced of the 3. It gets the ability Technician, but it doesn't help it that much considering that it doesn't have a lot of 60 power less moves. It's ability Intimidate is more useful, making it easier to switch into some pokes. Just like it's two brothers, it has trouble facing Ghosts too.
In short: The three can work, but it's going to require some breeding. Not only that, but there are better fighting types that can be used in place of the three. But they certainly have their uses though.