Yes, How is Superman relatable to you?
I've heard some people say he doesn't need to be relatable just inspirational, but I don't agree. To me Superman/Clark Kent needs to be both. He needs to be a character other people can relate to in some way while also be a superhero and person who inspires to want to be a better person and do the right thing. No easy task, but most superheros do that in one way or another.
Many say Batman is relatable because he doesn't have powers. It's all about his will power and his brilliant mind. But he is also very rich since birth, and most people aren't. They can't relate to his social and economic status.
And Spider-Man? Well people say he's just a teen with teen problems. What about Wonder Woman/Diana Prince? She's a warrior princess and she cares about helping others.
To me Clark is relatable because despite his immense powers, he is also a person with emotional needs, insecurities, desires and dreams. And he cares about helping others. He has an strong sense of duty and doing what's right and just. He needs to balance that with his personal life. That's not easy because there is always someone who needs help in the world. It's about his humanity for better and for worse.