Looking for a 9mm subcompact that sometimes goes on sale around $200-250. Which ones have highest capacity in both single and double stack categories? Also are any aftermarket parts sold that fit it like a light or laser sight. Also, not necessary but I think I prefer a manual safety ,since a trigger safety seems (to me) a risky thing if against your chest or on the front of your pants?
First, I will mention the ammunition. A meaningful sample size of ammo needs to be run through the weapon, to determine reliability. This makes it very difficult to stay within your stated budget.
Secondly, I will join the chorus recommending against compromising on the weapon quality, in order to fit a light and/or laser into the budget. Personally, I spent about as much on my most-recent weapon-mounted light, than your entire maximum stated budget, but, notably, do not mount lights on compact pistols. I do not use lasers on pistols. I may, someday, use a laser on a pistol, but have no plan to do so, at this time. (I am looking at lasers for defensive long guns, but that is a different kettle of fish.)
I am a believer in lights, but hand-held lights are fundamental. A light on a weapon is supplemental, and optional. Using a light, in a tactically-sound way, is NOT intuitive. Proper instruction/guidance is a good investment in time and money.
A safety, on the face of a trigger, is more of a drop-safe mechanism, to prevent inertia fire, than a “carry” safety. A proper holster is important, to ensure safe carry.
I will not comment on specific 9mm sub-compacts, because these guns became painful for me to shoot right-handed, several years ago, so I stopped paying attention to them. I do have a Gen3 Glock G26, because it fills a niche, as a supplemental lefty gun. I doubt that an older G26 fits your stated budget, considering that the panic-demic has increased the asking prices of pre-owned guns, but, as new “blue label” Glocks were selling for little more than $400, not so long ago, such guns may be within reach, on the pre-owned market, by saving money for a somewhat longer time.