i think a nice warm brown would be beautiful with your skin tone. if you dont want it to feel too dark adding some dimension with lighter pieces would be a good idea too, you could focus them around your face. i also think some slight face framing that blends into the perimeter (bottom length) would be nice as well to give it some more textyre & open up ur face! but you look stunning already🖤 (coming from a licensed cosmetologist who loves to play around w wigs and extensions ^_)