domain Asteria.co

any good advices?

After holding around 100 .co domain names, I have come to believe that .co is a numbers game along with the quality of the names.
If you have 100-500 quality names, you may sell 1-2% of them in a year.
You may try LinkedIn to contact businesses that have Asteria as their name, but selling this could be tricky.
If they are interested, negotiate and sell in whatever is their final offer.

I tend to agree with @Arpit131 . As a mythology term and pronounceable some startup might decide they want it, maybe especially in aerospace, special effects, or VR / AR. I like the feel of the term, but I think that the odds of sale are probably low so you have to evaluate if the renewal costs are worth it. As far as i could see the term has only sold once, for less than $1000 in .org.
Bob