Yep, follow that hint and then, I recommend, go to the following websites - lots of general bits of extra content. Also, don't forget the gallery you can access in game - I've shared two large castles (one for Newcrest and one for Willow Creek) on there. Anyway, creative content etc:
http://modthesims.info
https://thesimsresource.com
There are others, especially on Tumblr, but I don't have links for those and I'm just even a general search using a decent search engine will pull those up for you...
I'm using the Monarchy mod at the moment, but that's because I've set myself the challenge of creating a royal dynasty loosely based upon the House of Plantagenet of England and France (starting with Geoffrey and Matilda then moving on to Henry II of England with Eleanor of Aquitaine). After that, well, that's where the game takes over. I'm hoping to find creative content and mods etc that allow me to make a more medieval world as having nightclubs with DJs is a bit hard to handle whilst dancing in a set of armour. I'd also like to learn how to make my own own creative content too - I'd like to put the Plantagenet coat of arms on the armour and flags available (as well as being able to do this for the other nobles). Not a big deal, but changing some of the generic things just give a better look.
A hint of caution, though. I'm not able to find all of the creative content I have downloaded. That might be to do with something I'm not aware of though - I've not got all the packs, so its a case of just getting that all-important son and heir.
I hope you're safe and well and that this has helped.