A list of some fighters with ENY of 15 or more:
F4Us - except 4 and C
F6F Hellcat
Fw.190D9
Fw.190A5/8/F
KI.84
A6M5B
C.205
Bf.109 all variants
P.38 all variants
La.5FN
Yak.9U
P.47D11/25/40
P.51B
Spitfire all variants except XIV and XVI
Among that list are oustanding furballers like the Spits IX and VIII; the second fastest non perk plane in game at sea level and most alts, the D9; the best climbers in game in the 109s (the K also being first or second in non perk top speed at medium to high alts); Mustangs, Corsairs, Zeros, etc. etc.
Unless you fly the La.7, N1K, Spit.XVI, P.51D or the Perk plane set exclusively, you should never have issues finding a very good plane to use. If you do fly those planes exclusively, well, broaden your horizons a tad.