Onward to catch all I can get!

[GlitchedMage]

Ok. I am planning on going through my pokemon Leafgreen game on a Catch em All run but when I was planning this I realized, Im going to have trouble deciding which of the  138 pokemon obtainable in the main story of the game is going to on my team. Usually I make my team up as I go but Im kinda stumped cuz I want to have an easy time catching pokemon with low spawn rates and low catch rates. Could you guys help me out? 

[Tahmid ishraque]

Good luck