It would be worth thinking about what the word soulmate means to you and your motivation for wanting a therapist to be your soulmate. If it's to be cared about in a deep and real way, ANY well trained and compassionate therapist should be able to provide this. But a soulmate suggests to me that you're looking for a long term deep emotional connection that is long term and enduring and goes beyond therapeutic boundaries? This is very tricky ground and most therapists would not even go there due to the risks.

I think it's worth reflecting on what you're looking for in a therapist. Most therapists would help you explore how to meet this need in your life if possible.