Hey! Well, I'm guessing you mean custom worlds, but EA worlds can also work if ya want some green worlds. If ya want one from an actual Sims game, then I would recommend Riverview, Twinbrook or definitely Hidden Springs.
Otherwise a custom one, there are loooaddss out there but some of my favourites are PravenWPooh, Equestrian World, Wildwood, and I would really recommend Harbledore Hills. I'm sure I've missed out loads of good ones but hey ho. But anywhere is good with dark green grass, very lush, some dark trees like redwood but honestly, if ya can't find a perfect world it doesn't matter! The scenery was just to get a nice feel if ya get me
Check out here for some cool stuffz