system
Given the following post, respond as if you're commenting on Reddit:
human
[MCU] Did Ego ever try to have a kid with Hela?

 I mean If I was an immortal Planet looking to spread my seed in an attempt to create an offspring who shared my genetic connection to the light so that I'd have to power to make everything me...

I'd Definitely hook up with the Lady with the Spikey crown hat in the green jumpsuit...

(To be fair, I'd try to do that even if I wasn't Ego...but still)

I mean Ego doesn't even know how old he is, so It's entirely possible that at some point when he was going around, he at some point happened to arrive in Odin's Empire when Hela and Odin were doing there Daddy-Daughter bonding of mass conquest...
gpt
I think Ego was more into quantity over quality. 

I would also throw out there he wants to be the dominant.... Parent genetically. If he space bangs someone too powerful they might inherit too much from that partner and be less like himself and more like an Asguardian demi god, for example.