Best opportunities for research in theoretical physics

[Prometheus5]

What is the physics branch with better opportunities in theoretical research? For exemple many people say that there are fewer chances to get a PhD in quantum gravity than a PhD in others branches of theoretical physics. Is that true? I think that there are more opportunities in theoretical condensed matter physics or plasma physics applied to nuclear fusion because they could have more pratical applications. Am I right? I'd like to know the situation of theoretical research in Europe. Thanks for the answers and sorry for my bad English

 

[Prometheus5]

P.S. I'm also interested in jobs related to this PhD.

 

[Louiethefly]

I have always been very interested in pursuing a career in theoretical physics does anybody have any advice for a young student hoping to contact other like minded people?