Alaikumassalam wa rahmatullah,
Reem means a pure-white gazelle. It is an Arabic name for girls. It is not in the Quran directly or indirectly, but since the meaning is good Muslim can use it. Other versions of this name that have the same meaning and are good names for girls include: Reemi, Reemah, and Reemaa.
Maram is an Arabic name for girls that means intention, goal. It is pronounced as (MU)st + p(R)ay + sm(A)rt + (M)uslim. It is not from the Quran directly or indirectly, but the meaning is good therefore Muslims can use it.