First, you need to pay attention to your supervisor, select a good one, one ready to trust you and give you freedom of action.
Second, grab a university where there is effectively budget for you to travel to conferences and meet people.
Then, work hard and network a lot.
I am French but did my PhD in Denmark (DTU), it was 3 years with a very good salary, with a lot of travels all over the world, with an insane level of networking. Now, after some work in a company, I have setup my small consultancy, the quality of the network I have from my PhD is a gold mine.
If you do your PhD to just enter in a company with a higher salary after some years of feeling like a slave, you are doing it for the wrong reason.