@gwt3g8908edf If you want to spend less than $500, a laptop is a better bet unless you already have a monitor you can use. I could try to find a decent desktop if that's what you prefer; I'm just saying that you'll get more performance for a given budget with a laptop. On the other hand, if you do already own a monitor, or you don't mind picking one up secondhand, a desktop might be an equivalent option.
There are two main reasons that desktops are said to be better for gaming. One is that they're more easily fixed or upgraded: the components aren't soldered to the motherboard, so you can swap as necessary. The other reason is that in terms of gaming hardware, the desktop version of a given component is faster than the laptop version and around the same price, although it's not always easy to break down the overall price of a laptop by component. But this only really applies in the gaming and professional market segments, not at the lower end.
At any rate, let me know how much you'd like to spend, whether you actually want a desktop or just the best option for your budget, and whether you have a monitor or are willing to buy a cheap model on the secondhand market. Please also let me know what country you're in: availability and prices can vary widely from one country to the next.
By the way, if you already own a computer and want to know how it would run Sims 4, or how it would compare to what you could buy for your budget, I can answer that too. In that case, please run a dxdiag on that computer and attach it to a reply here.
https://help.ea.com/en-us/help/pc/how-to-gather-dxdiag-information/