Suggestion; if Mig-15 is too much, try Su-25.

[SimFreak]

If 15BIs is too hard, select 4 x Su-25s. They should give you some amusement. :D

[Maico249th]

Good one. Mig 21 also. Has anyone tried Su 17?

[Milano]

Yes, SU25 is a fun match:

 

In a low to medium speed turning fight it'll easily beat you, and it packs serious firepower.

 

You can get him in the vertical, so energy management is key.