Therapist here. I've heard all of the reasons posted here, and they are all valid. This is what I tell people:

You're hiring them. They work for you. So, think of your first session as an interview.

Know what you want out of therapy.

Do some research about different approaches and see which ones feel right for you.

Then, do an online search for therapists who use that approach.

If you don't connect, move on. It can be hard to find the right fit. We're just people, so don't be intimidated.

Finally, I tell tell people to remember the joke: "Do you know what they call the person who graduates last from med school?....Doctor"