On-camera monitor recommendation for D750 and/or X-T2?

[DigitalRelish]

Hi, I'm looking to be able to film myself using either my Nikon D750 and/or (preferably) Fujifilm X-T2. Neither has a fully-articulated LCD screen so I'm looking for recommendations for suitable on-camera monitors I can use. I'm not looking to spend a large amount and just want something that will let me check framing and focus primarily.

Any suggestions?

Thanks