You can find fighting type Pokemon in various area's. I will give a few Pokemon and their area's (pure fighting types) :
Mankey-Route 9, Route 42
Primape-Route 9, Cerulean Cave
Machoke-Mt Mortar, The Cliff Cave, Cerulean Cave, Rock Tunnel
Tyrogue-Receive from Karate King in Mt Mortar
Makuhita-Slowpoke Well, Union Cave, Mt Mortar, Dark Cave, Whirl Islands, Mt Silver, Ice Path, The Cliff Cave, Digletts Cave, Mt Moon, Cerulean Cave, Rock Tunnel, Sefoam Islands, Victory Road, Tohjo Falls
Riolu-Safari Zone
After 70 days-----lvl 45-------Objects=10 forest & 14 peak objects
you can get a mankey at the lower left trial to the Pokemon league at the beginning
Fighting type moves are super effective against: Dark, Steel, Ice, and Rock type pokemon.
I would say the largest fighting type Pokemon is Machamp.
Hitmontop is a Fighting type pokemon.
Timburr is a Fighting type pokemon.
Gurdurr is a Fighting type pokemon.
Passimian is a Fighting type, and it was introduced in the Generation 7 games, Pokemon Sun and Pokemon Moon.
Flying and Psychic do 2x damage to Fighting-type Pokemon.
I would say the largest fighting type Pokemon is Machamp.
Fighting type Pokemon are weak exist Flying and Psychic.
Fire/fighting type pokemon are good . such as pokemon in the charmander family
Mienfoo is a Fighting type pokemon.
Tyrogue is a Fighting type pokemon.
Timburr is a Fighting type pokemon.
Machop is a fighting type pokemon.
Conkeldurr is a Fighting type pokemon.
Throh is a Fighting type pokemon.
Mienshao is a Fighting type pokemon.
Hitmontop is a Fighting type pokemon.