Need ideas and designs for lingerie line

Hello, i hope you are good in health, I have a few ideas in mind for my startup of lingerie company, im looking go get a few ideas regarding the lingerie market. Here are some of my concerns: - i want to break into the lingerie market but not sure if the plus size market in the lingerie business is a good niche - what designs do women really want to see and what are the current trends that women want to buy? - i am not sure of how to find the right manufacturers for my ideas. - i am not sure how many designs to start off with either. If you could understand my concerns and get back to me with the relevant information i would greatly appreciate that. Kind regards, Iqra.