Help grinding

I am stuck on Norman all trainers are defeated i don't have access to the match call rematch functionality yet. So i'm stuck using wild pokemon experience, and i'm not certain where the best source of exp is. I know in ruby and sapphire, the best source of e x p happens to be rosalia, he was conveniently absent from Emerald. The only pokemon, i'm finding of a decent e.X p yield upon defeat is Solarock at lv 14 at 300 to 385 at lv 18. My question is, is there any other location? That's better, because I frequently encounter. Zubat. That's shield somewhere between one hundred to a hundred fifty ish e, x, p, which is obviously less than Solarock.