Keeping this in view, can you use Oculus Rift without monitor?
Yes and no. To repeat u/Pteroc, you would have to do it with a headless ghost display. In previous versions of Windows you could trick it into having virtual monitors, but Windows 10 doesn't seem to allow for that; it requires hardware.
Also, do you need a console for Oculus Rift? You also need a PC that can handle virtual reality. Oculus recommends a system with at least an Intel Core i5-4950/AMD Ryzen 5 1500X CPU, an Nvidia GTX 970/1060 or AMD Radeon R9 290/RX 480, 8GB of RAM, three USB 3.0 ports, and an HDMI 1.3 port. If you don't have that, it's time to go shopping.
Also to know, can you use VR without a monitor?
Sure. You just need to make a dummy plug. Litecoin miners make these to trick the computer into thinking a monitor is attached. Just taking off the lenses makes the DK2 a workable monitor if necessary.
How do I use my Oculus as a monitor?
How to use your Oculus Go as a monitor for your PC
- Launch Steam.
- Right-click Bigscreen Beta in your Steam library.
- Click Play Remote Desktop streaming client.
- Click Start Streaming.
- Click Connect to your Mobile VR Headset.
- Launch BigScreen Beta on your Oculus Go.
- Select Join Rooms.
- Select the Room ID field.