According to the slot report, the below airlines have applied for slots for W23:
Azerbaijan Airlines (from Baku)
Ethiopian Airlines (from Addis Ababa)
ITA Airways (from Rome or Milan?)
PLAY (from Reykjavik)
TAAG Angola Airlines (from Luanda)
Volotea (has several bases in France, Spain & Italy)
Credits to @SeanM1997 for this info.