Maybe Scyther? Or Dewgong? (Dewgong is quite useful for the last gym) Haunter/Gengar? (To be as menacing as ever to the computers) [I just guessed which types you don't have is a good type to have]Currently...I'm training for the Blackthorn Gym. My team needs some experience before then.
Espeon- level 33 (leveling up for Psybeam)
Fearow- level 33
Lapras- level 32
Ampharos- level 37
Typhlosion- level 38
Tauros- level 20 (HM Slave)
Need an idea for 6th slot cause Tauros is only temporary