australia seems unlikely, australian grads cant get internship spots and would be hard to get training. i think it would be difficult unless you have done residency already

NZ not so sure, I only know of the malay GP who passed away a few years ago. They are recruiting GPs I believe, could stand a chance to go there but unlike sg all GPs go through a training programme so that can be an obstacle

seems quite a rare thing to break a bond with singaporean degree, do you have any other classmates wanting to do the same?