Career advice is a matter of trust and belongs in the hands of professionals.
Don't just compare the services and prices of different providers. If possible, also read testimonials and see whether a career advice centre specializes in particular sectors. With specialized providers, you can sometimes benefit from particularly good networks and knowledge.
It is best to think in advance about where you stand professionally and what you hope to gain from career advice. This will allow you to make specific inquiries when you first contact them and you will be able to see whether the advice center will address your personal concerns and whether you are at the right address.