Really good save file?

Depending on your play style, you may love Portsim by Florwalsims. It is a very realistic, gritty re-imagining of Willow Creek/Magnolia Promenade/Newcrest (all one southern city called Portsim). She's also actively working on other worlds and continously updating it. She recently released a version that also includes a run down LA version of Del Sol Valley.

Again, not for everyone but highly detailed, dense with lore, and actively being worked on:
https://florwalsims.tumblr.com/