Yeah, something low maintenance. My INTP female friends generally get boy cuts or shaggy short cuts.
Short boy cuts are great - they are ready as is.
Shaggy grows out too fast but it looks INTENTIONALLY messy meaning "styled".
Boy hair should be easy, sheesh Entropie.
PS Long hair takes maintenance too -- i.e. regular brushing and washing. This may be too much for a pre-occupied NTP.
I've cut my INTP brother's hair before. He always gets these horrendous $6 hair cuts that look like bad home cuts so he doesn't complain or care when I mangle his hair for free. Why does he keep on getting bad $6 hair cuts from the discount hair wacking store? "Because the 5th time is free!"