Is it this style you're looking for? Sorry about the inelegant link:
Grenadier cap also called a cadet cap is what I normally wear and it looks pretty good as long as you get something like black or grey (no camp or OD green) KBK-1464 BLK L Cadet Army Cap Basic Everyday Military Style Hat https://www.amazon.com/dp/B00IDBKDS2/ref=cm_sw_r_cp_api_kFfXzb7DJNBMR
I like this style of basic cap with no plastic band, clips etc to snag in your hair. Also available in other colors besides basic black.