There are plenty of fish in the sea - TheFreeDictionary.com
https://idioms.thefreedictionary.com/There+are+plenty+of+fish+in+the+sea
WEBthere are plenty of (other) fish in the sea. There are many other excellent or more suitable people, things, opportunities, or possibilities in the world that one may find. Said especially when one has recently been unlucky, unsuccessful, or has broken up with a romantic partner.
DA: 45 PA: 15 MOZ Rank: 92