It’s on top of the right side valve cover and it’s leaking around it.

 

VVT solenoid - for variable valve train timing (think Sport mode, etc). Very common leak point and very easy to replace as the seal simply slips up and over that connector head. Replace seals on both sides. Link below but can be found cheaper, just avoid URO brand. Also if they leak again then you likely have corrosion on the solenoid body which prevents a good seal and the solenoid will need to be polished. My new seals still had a tiny leak until I replaced my valve cover gaskets and removed the solenoids to polish.

https://www.roverparts.com/engine/ga..._5i6grsJtjFwww