Finally was able to find an EGA monitor by Philips! Before I was only able to use my old tv using composite-out with the CGA card that the NMS 9100 came with,
mono All-In-One (AIO) 21in Monitor PC Chassis
Lamptron PC hardware monitor&Graphics card holder-HM022 - Lamps
AD MONITOR CARD CORNER DISPLAY.
G-Sync vs. FreeSync: Adaptive sync gaming monitors explained | PCWorld