Been there done that.
Was in the same situation as you. Only for me the command course was scheduled and had a WB FO position offer in hand.
As someone mentioned, command is command.
Airlines in the ME will be forever hiring DECs and DEFOs.
And please don't chase metal; chase lifestyle. It's what you want as a routine. NB and WB are contrasting lifestyles. So is command vis a vis right seat.
Good luck with whatever you choose.