How to actually change careers

I have made the decision to change careers, yay me! So awesome right!?! Not really, now I'm stuck. I've been in this career for the past 18 years. Now I have no idea what to do next. Search for jobs that resonate with you they say... well since LinkedIn et al are algorithm based it really only shows jobs that match my current experience. How do you look for jobs when you don't know what the job title is??

I'm really struggling to find what is next for me. I don't have any idea what my current skills may transfer to another job title (that isn't tangentially related to my current position). I'm looking for something radically different, but end up getting stuck looking at 'recommended' jobs.

Looking for recommendations for how to get out of this loop. Any ideas welcomed.