Olympus OMD E-M1, E-PL7, E-PM2
I got tons of lens - mostly old ones that I adapt to these cameras.
Some of my favorites old ones:
1950 Kodak Cine Ektar 25mm 1.4
1957 Kern Paillard Pizar 26mm 1.9
1950's Kodak Cine Ektanon 63mm 2.7
1960's Minolta MC Rokkor 58mm 1.4
1970's Minolta MD Rokkor-X 50mm 1.7 (I usually shoot this with a speed booster)
1970's Helios 44M-6 58mm 2
Among my 'modern' glass that I like
Rokinon 85mm 1.4
Olympus ZD 14-54mm 2.8 - 3.5
Olympus ZD 50mm Macro 2
Olympus ZD 50-200mm 2.8 - 3.5
Panasonic Lumix G 20mm 1.7
I would be surprised if you can connect the Nikon to be used as a viewer - this usually requires some kind of a wifi connection that can stream video in the camera. I have one camera like this - an Olympus Air A01 - and it is not fast enough or reliable enough of a connection to really use it (and this is from a camera that was specifically built for this purpose). My other Olympus cameras can be triggered remotely by wifi - but they do not stream video.
I got some really interesting things done with the Air A01 - but I am using it less and less - it is really not good enough a connection to be used regularly. The white portion in this picture is the camera - and you can put any M4/3 lens on it.
FWIW - there is this doohickie you can buy for the Nikon:
https://www.tethertools.com/product/case-air-wireless-tethering-system/
I am not certain it provides live-view (streaming) - but it adds some wireless tools and looks big enough to potentially have the power to do proper streaming.