Flareon dilema.

Its hard for me to find best fire attaking move flareon fireSpin/overheat

I have 6 flareon (5 evo and 1 wild)
2347 (E/FB) Lv.30 Iv.60
2208 (FS/FB) Lv.28 Iv.64
2001 (E/FB) Lv.25 iv.71
1633 (E/FB) Lv.20 iv.88
1064 (E/FT) Lv.13 iv.88
292 (FS/O) Lv.4 iv.73 [wild]

Now im LV33 and have
502 eevee candy
1.5 M dust
3 eevee candidat with iv.82 and Lv.20

What should i do to get the best Fire tipe attaking mon that is very usefull to new gym system.