I also would like to have such a game; just a modern SimCity-like without all the resource & traffic management of Cities Skylines or other city builders. Unfortunately nowadays it often comes down to that and thats just too much of a hassle for me personally; I would love a simple game like SC2000/3000 without having to worry about having enough ore, oil, lumber or whatever to unlock some sort of building.
Alas, I dont know of any game that is really like SimCity, most games have some sort of "spin", and most games Ive tried arent very good either. But these are the ones that come to mind, your milage may vary.
These two are a bit older and as far as I know didnt review well; I never played them much
Ive only played them a little bit and couldnt really get into them
I liked this one but its also based on resources and unlocks. It does have a freeform mode eschewing all that, tho. And you can upload your cities and continue on mobile. Theres also a Pocket City 2 (featuring a first person walk-around-mode), but its not on PC yet.
Ive not tried these two
And Skylines is okay, and you dont really need all the DLC (however, during a sale, it might be a good deal to get some of it)