Goober and the Ghost Chasers

Goober and the Ghost Chasers is a series of occidental cartoons similar to Scooby-Doo, as both were created by Hanna-Barbera. Goober and the Ghost Chasers centers on three teenagers, Ted, Gilly and Tina, who are in charge of the Ghost Chasers Magazine and always looking for ghosts to interview (though the ghosts are rarely cooperative). They have a dog named Goober, a spindly, green-colored Saluki who can involuntarily become invisible.

The group travels to various places and uses technological equipment like a ghost detector to help in their research. More often than not, they encounter both a real ghost and a fake ghost. The ghosts are capable of classical ghost tricks like levitating objects. While most real ghosts are initially hostile, they end up leaving the living in peace, sometimes after helping in defeating the fake ghost.

Compared to Scooby-Doo, Goober can speak more clearly, but his dialogue is not understood by other characters; Goober's lines are mainly fourth wall-breaking retorts. He is also somewhat more courageous.

Further information
Wikipedia: https://en.wikipedia.org/wiki/Goober_and_the_Ghost_Chasers