Canada and Australia have a point based immigration policy, and the exams for which are conducted regularly throughout the year.

Even though European countries give work permits, the options are less and competition is more.

The best country that a engineer can land in is the USA. You can expect some relaxation in their immigration policies after the election of 2020. If you belong to premier and top institutions like IITs, gettin a job would be comparatively easier. Another option would be to complete your PG from the US as this will widen your options for selection there.

Another great option would be Germany.

In conclusion, the best way is to pursue your Masters from the country you desire to get a job in.