Hi SergeyFat,
We appreciate you reaching out to us. We understand that you are looking to remove the first site that appears when you type "maps" on Safari.
Just to confirm, are you referring to the result under Top Hits?
If yes, it may help by deleting the unwanted link from your History.
To do that, open your Safari's history (History > Show All History), look for the unwanted website and delete it.
Also, we'd like you to know that you have the option to bookmark websites that you often revisit.
Bookmark websites that you want to revisit in Safari on Mac
Take care!