Foos is not a popular first name.
First names and their meaning - Page 8147
Forde
Meaning: River crossing. 
Forde is not a popular first name. It is more often used as a boy (male) name. 
Foris
Foris is not a popular first name.
Fusheng
Fusheng is not a popular first name. It is more often used as a boy (male) name.
Gais
Meaning: Percival’s grandfather. 
Gais is not a popular first name. It is more often used as a boy (male) name. 
Gander
Gander is not a popular first name.
Gannie
Origin: Scottish-Gaelic. 
Meaning: Fair skinned. 
Gannie is not a popular first name. It is more often used as a boy (male) name. 
Garabed
Meaning: Forerunner. 
Garabed is not a popular first name. It is more often used as a boy (male) name. 
Garai
Origin: African. 
Meaning: Calm, Conqueror. 
Garai is not a popular first name. It is more often used as a boy (male) name. 
Garid
Garid is not a popular first name. It is more often used as a boy (male) name.