Asked: Pokemon Fire red and leaf green question. please answer?

what pokemons should i catch to start off the game. when should i catch these pokemons. Good pokemons i can get early on so i can level them and be able to challenge the league with them. 1 must psychic (really great one) like ralts or abra in emerald. fighting please and im going to choose balbasouras starter. thank you very much.