I'm assuming by garage you mean your own private one to work on your car/hold other shit? If that's the case, then you're definitely stuck in Southside (and unfortunately I don't have any recommendations because I'm a Riverside/Avondale snob), but if you just mean somewhere to park your car under cover, then Bell Riverside or 220 Riverside are good options in the fun part of town. Until I bought my house I lived at Bell Riverside and it was baller.