Helga Hufflepuff: Taurus, Leo, Pisces

Rowena Ravenclaw: Aries, Virgo, Aquarius

Godric Gryffindor: Gemini, Libra, Capricorn 

Salazar Slytherin: Cancer, Saggittarius, Scorpio

As you know, I pulled these out of a hat. Helga is the founder of Hufflepuff, Salazar of Slytherin, Godric of Gryffindor, and Rowena of Ravenclaw ( my house! ). I got Godric, comment who you got below! And who your favorite founder is! Mine is Rowena.