It is a lovely thought to try and get the experience that ideally your dream airline looks for, but unfortunately the reality is, they dont care, your just a number, just go out and get any multicrew job you can get and then start making choices as to where you want to go. You will find it hard enough to get any first job let alone one with an airline who flies airbuses. If your willing to pay for a rating go to Ryan Air or any company linked to the TRTO you are doing your rating with and you will build up experience rapidly. Since you seem to be prepared to pay for a rating, maybe even do some research by calling a few TRTOs to find out which rating they would recommend.. Airbus is the popular rating of the moment. Once you have 500 hours on your belt then look to the airlines who you really want to fly for.. But frankly take any flying job you can get get the hours and then go from there dont sit a home for a year dreaming of a jet job and getting nowhere. Multicrew hours are key.