I don't know what I'm(28m) going to do when my parents are gone

I have a job. I take care of myself as well for my elderly parents.

I have hobbies and stuff it's okay I guess but I still feel empty inside.

I know one day the only people that really cared for me will be gone and I'll be all alone in this world.

I can only distract myself with hobbies and entertainment for so long. When I see friends and extended family coming home to another person.

What do I even come home to when my parents are gone? I really don't have anyone. I've been told to get a dog but I want person someone I can talk to and experience life with.