Online shops for fabric and crafting supplies (US)? Sewing Machines Parts and Sales in Los Angeles

I have a relative who’s currently living in the US, so I have the opportunity to order some fabric from US shops. I mostly sew children’s clothing and mostly with knit fabrics but dislike the usual cutesy prints – I’m more for simple graphic patterns or vintage 70s inspired stuff. I love Purl Soho, but they mostly sell wovens.

I’d love to hear your recommendations! 🙂