A pistol light is only a tool; the question is what task you have in mind, what you want in one and what you’re willing to part with. Every one of the lights on this list fits someone very well. Maybe that’s you, maybe it isn’t.
Not everyone is best-served by a TLR-1 or Surefire X300. Not everyone should get an Olight PL2 Mini Valkyrie. A 1000 lumen light is not the most necessary for home defense in an apartment, and 200 lumens is not enough if you’re outdoors.
Therefore, consider what your specific needs are and/or are likely to be before buying. You’ll get more from your purchase if you get the best light for you.