What type of laptops are best
What laptops are under $500 that will still work with CC’s
@tyleea For under $500, the new computers you'd see are pretty much the same, plus or minus screen and drive size. These all have the same integrated graphics chip, the fastest one you'd see in laptops in this category; the same processor, which isn't all that strong but will handle Sims 4 fine; 8 GB RAM; and a 256 GB solid state drive, which is fast but small, although it's still more than enough for all Sims 4 packs plus all the custom content you could download. The differences are screen size and weight.
https://www.amazon.com/Lenovo-IdeaPad-Processor-Graphics-81W0003QUS/dp/B0862269YP/
https://www.amazon.com/VivoBook-Laptop-delgada-ligera-pizarra/dp/B07QQB7552/
If you're interested in used computers on Ebay, you'll probably find something better for the same price. But the usual retailers don't have anything used for less than $500 that's better enough to compensate for the fact that the laptop isn't new. Let me know if you'd like some examples from Ebay though.