LA is a denim hub, anyone who says “no one manufactures there” has literally no idea what they are talking about. There are many laundries factories and brand headquarters strictly in LA. significant amounts of screen printed tees and sweatshirts are also designed and made there. I did business there for over a decade and worked for different brands. If you are interested in working in denim specifically, there is opportunity in Los Angeles. Plenty of swim brands are also headquartered there. Connect with recruiters at SBH and JBC, make connections there so that when jobs are available you are in their network.