EXP GRINDING SPOTS
1. Grinding for 1st Gym.
We would recommend to just train in the patches of grass near it. You should be fine without much grinding.
2. Grinding for 2nd Gym
You may do the same thing as the st gym but for better EXP train in route 5 with Bug Catcher Allen. He has a Lvl.14 Butterfree and a Lvl. 14 Beedrill.
3. Grinding for 3rd Gym
4. Grinding for 4th Gym
One good place to train is at Cragnos Cliffs with Hiker Jackson for Physical Defence.
He has a Lvl. 32 Geodude, a Lvl.34 Graveler and a Lvl.36 Golem. Use a water type such as Greninja or Blastoise.
5. Grinding for 5th Gym
To train for the 5th gym we would recommend to train with Paleontologist Aria in route 11.
She has a Lvl.44 diglett, Lvl.44 Drilbur, a Lvl.45 Dugtrio. and a Lvl.45 Sandslash. I'd recommend a water type or grass type for battleing her.
6. Grinding for 6th Gym
7. Grinding for 7th Gym
8. Grinding for (Soon to be) 8th Gym
We don't currently have much speculation about the 8th gym. But when we do make sure to come back here!