A ghost radio or whatever it's called would work and just try to work with you. Also, look up how to communicate with ghosts. Also if it's a specific person who you can visit their grave you should probably leave a note there sometime and maybe they will contact you! I heard it works and I hope you get the best of luck :)
If you want to communicate with a spirit or a dead being I suggest finding a medium. Mediums are people who can communicate with spirits. I'm not sure if there is any way to become a medium without having been born one but they would be able to help you.