Do you mean:

* Brightest in the night sky (apparent magnitude): This is about how bright a star appears to us on Earth, which depends on its actual brightness and distance. The top 5 brightest stars are:

* Sirius (Alpha Canis Majoris)

* Canopus (Alpha Carinae)

* Arcturus (Alpha Bootis)

* Alpha Centauri (a binary star system)

* Vega (Alpha Lyrae)

* Brightest in terms of absolute magnitude (intrinsic brightness): This measures a star's actual luminosity, regardless of distance. Some of the most luminous stars include:

* Rigel (Beta Orionis): A blue supergiant about 40,000 times brighter than our Sun.

* Deneb (Alpha Cygni): A white supergiant about 200,000 times brighter than our Sun.

* Eta Carinae: A massive, unstable star that is currently in a state of eruption. It's incredibly bright, possibly millions of times brighter than our Sun.

Let me know what you're interested in, and I can give you more details about the stars that fit your criteria!