Finding a therapist is pretty straightforward, for example you can use a site like:

Find a Therapist, Psychologist, Counselor – Psychology Today

Or follow instructions on who to call like these:

Finding a Mental Health Professional | NAMI

The harder part is figuring out if the therapist is actually helping you.

I only recently learned that they should be giving you homework – like something to practice or a question to think about.

You should feel safe and comfortable with them.
If you don’t feel that way with any person, then you might consider finding someone you’re willing to explore and address that with despite how you initially feel. You could also try a group setting where you can listen and learn or watch videos or read books to get started on healing.

Even there you should get actionable items to work on. For example, all the various 12 step groups have you work the steps of the program. This video mentions starting with breathwork which there a lots of different videos you can look through to find one that works for you. I try to do box breathing daily, especially while driving or other tasks like that. Books like Parenting From the Inside Out by Dan Siegel also give end of chapter activities to try.

If you’re just paying someone to listen to you vent, they aren’t doing a good job. They should listen to you vent sure, but then they should be asking good questions. How or why did you end up in that situation? What do you wish you had done and what stopped you? What do you want to do in future situations like that, and what do you need to be able to do that?

I once had a therapist cancel me as a client because “It seemed I had nothing to work on and was just venting which I should do with friends.” – I went along with it, but many years later I realized that the therapist didn’t ask if I HAD friends I felt I could talk about this stuff with or WHY I wasn’t talking about it with my friends. I knew I needed help, I just didn’t know what I needed and didn’t realize that my therapist wasn’t skilled at figuring it out either.

Another therapist I fired after realizing I was only ever venting about one topic again but not being given any actionable feedback on how to change my own behavior to affect that relationship and the venting was just bringing me down.

One I had to stop seeing because driving there after work ended up being so tiring I couldn’t think or talk about anything else by the time I got there. Thank goodness for all the remote options we have now!