Charizard Counters

I'm wondering who I should use/power up besides my one level 30 RT/SE 80% Golem. I'm considering:

1) level 27 83% RT/RB Golem

2) level 26 82% MS/SE Golem

3) level 10 96% MS/SE Golem (have enough candy to level 30+)

4) level 30 69% WG/RB Omastar (won't need to level him up)

5) level 10 87% WG/RB Omastar (only have enough candy to get him to level 21)

6) maxed 96% MS/SE Rhydon

7) maxed 82% WG/HP Vape

8) maxed 87% WG/AT Vape

I also have good generalists like DT/O Dragonite, C/FS Espeon, PC/FS Alakazam, and SC/SB Gengar.

Who is my squad of 6?