Asked: Training for Fire Red Elite Four?

I am trying to train my
Lv 47 Lapras (Surf, Rain Dance, Blizzard, Ice Beam)
Lv 46 Hitmonlee (Brick Break, Hi Jump Kick, Mind Reader, Strength)
Lv 47Nidoqueen (Surf, Body Slam, Superpower, Earthquake)
I also have:
Lv 55 Mr Mime (Psybeam, Psychic, Reflect, Light Screen)
Lv 55 Electabuzz (Thunderpunch, Screech, Thunderbolt, Swift)
Lv 50 Charizard (Flamethrower, Fly, Heat Wave, Blast Burn)

Where is a good place to train the first three BESIDES VICTORY ROAD!!!!!!!