Looking for advice on further education

Hello guys. I have got a younger brother of mine that is thinking of going to Polytechnic. I am supposed to have a sit down with him so that I can help him come to a decision on what course he'll do. He isn't sure of what to pick so I will help him. But I want my input to be sensible.

For the guys who work in the trades, I would like to ask for your input. I was thinking he go for a trade which has at least two of these things: it should be something that he could freelance in if he doesn't find formal employment and it should also be something that could allow him to migrate on one of those skilled VISA things (I want to see to it that he gets out of this shithole as quickly as possible).

Which Trades would you guys recommend?