Let me clarify:
#650 Chespin
#651 Chespin first evo
#652 Chespin final evo
#653 Fennekin
#654 Fennekin first evo
#655 Fennekin final evo
#656 Froakie
#657 Froakie first evo
#658 Froakie final evo
I've thought of ideas for the evolved forms of these starters! See if you agree with any of these:
Chespin > Spinut > Thornhog
Fennekin > Lavulp > Blazerda
Froakie > Bullfog > Frothitoad
I also thought of an idea for a pre-evolution of Stunfisk: Turbolt, a small flatfish that discharges electricity.