Plus sized lingerie??

I need recommendations on good quality plus sized lingerie, like 3x. My best friend is getting married in December and she gets down on herself a lot and I just want her to have a few things that make her feel super confident and sexy, I’m going to give her them at her bachelorette party and I don’t know where to find things because I’m scared of ordering online in fear that the stuff will be cheaply made or bad quality