I generally tell people that sights are very much personal preference. Everybody's eyes/brains work a little differently when it comes to vision and sight acquisition.
I have Truglo TFO (TFX minus the bigger colored front ring) on an M&P Shield, and they're very bright during the day and still illuminated at night. However, one downside is that they're long and functionally make an already short sight radius even shorter. A longer sight radius generally enhances practical accuracy at distance. However, for realistic/common self defense distances, it probably doesn't matter for most people. If you want to show off at 25+ yards with your concealed carry pistol, or you have a rural property where you might want to plug coyotes, then you might want a sight that's better for distance work.
I'm not a fan of the Trijicon HD that used to come as the factory upgrade sight on Glocks. Front sight is a bit fat for distance work, and for some reason, I don't like U-notch rear sights. Also, for whatever reason, a lot of them are loose in the rear dovetails of Glocks and require loctite or peening. One other thing I've noticed with really big dot front sights is that a lot of people who don't practice regularly have a harder time not only looking at the front sight. Now, inside 7 yards, you put that dot center mass, you probably hit high thoracic cavity, which is what you want to stop somebody. Get past that, rounds start sailing even higher.
I also haven't like the XS sights I've dealt with. Fronts were loose enough to be put in without tools and required loctite/peening, the rears were oversized and had to be filed down to avoid risk of breaking the rear dovetails on the slides.
I don't really have an issue with the traditional night sights like the basic Glock night sights (made by Trijicon, IIRC), and my easy button recommendation these days are the various Ameriglo sights. They've got a wide variety of colors and styles; square front color, round front color, traditional green/white dots, blacked out rear, I-dot rear, etc. With that selection (especially for Glocks), you can probably find something to your liking. Unless you want Tritium/fiber optic combo. Then you go with Truglo.