>>7228368Your best bet is to look into the Nerf Rival line. It's mainly aimed at older audiences and focuses on competitive performance. They use small, dense foam balls so they have far better accuracy then most darts and the blasters themselves boast a lot of power. The Spring based ones especially required some effort to prime and fire, but pack one heck of a punch.
With old fashioned Darts however, there's still many blasters that work well and offer consistent performance. Some dart blasters will focus on specific gimmicks or visual themes, and their performance will suffer because of it (though they can still be fun to play with). But a few specific ones are just consistently good and are a great gateway into the hobby.
If you think you'd prefer a battery operated, semi auto fire blaster,you should pick up a Stryfe. If you want a spring based pistol to plink with, grab a Disruptor/Strongarm/Hammershot. All of them are good and offer similar performance. if you want a spring powered, mag fed blaster with accessory potential then you should get a Retaliator. A bit awkward to use, at first, but a solid blaster and with the right add ons, it can look pretty badass.