It depends where you are and what you want and can do. Usual operators that takes you if you have a pulse and a license:
avion express
smallplanet
wizzair
Eurowings europe
laudamotion
level Austria
Semi decent operator where is not too difficult to get into:
Aegean
easyjet
TURKISH
Flynas
flyadeal
gulfair
more difficult operators to get into:
BA
Emirates
qatar
It really depends on you