I would stay away from any terrier, herding dog or chihuahua for an inexperienced dog person. These three types can be difficult if not trained and socialized well. Schnauzers are great little dogs, but require brushing and grooming. Beagles are great dogs too. medium small sized and energetic, sweet. They do yodel though.
1 Doberman Mix: Emmy, 2 DSH Cats: Rowan & Jacob, 1 Bearded Dragon: Rainier (aka Mista Lizad Man), 1 Eastern Box Turtle: Greta, Two 5g tanks: Alchemy (Halfmoon) and Custard (Yellow VT)