Your dream job might not exist yet. Build the skills and be ready when somebody invents it, or invent it yourself.

Job titles get invented all the time, usually a few years after people start doing the work. If you aim only at roles that already have names, you are aiming at a list that is permanently out of date. Skills travel between roles; titles do not.

Name two or three things you want to be genuinely good at rather than one job you want to hold. Build them in a combination few people have. That overlap is usually where the new thing turns up.