Retro-tinged garage-rock your thing? You need to meet the Paranoyds. And you’ll have to do that in person, because the L.A. quartet largely eschews social media. They’ve built a following the old-fashioned way, delivering scintillating shows fueled by word-of-mouth buzz. Reverb-soaked guitars and echo-y female-led vocals evoke a hazy ’60s girl-group, albeit one with a distinctly modern edge.