Stars, galaxies, nebulae ... a constellation is just a defined patch of sky, so anything you'd normally find in the sky might be found in a constellation.
The North Star can be found in the constellation Ursa Minor.
The star Regulus, or Alpha Leonis, can be found in the constellation of Leo. It is the brightest star in the constellation.
Vega is found in the Lyra constellation, also known as the harp constellation. It is one of the brightest stars in the night sky and is easily recognizable.
All of them
Instanly
in a triple-star system in the northern constellation Cygnus, or the swam
Sirius is found in the Heart of Canis Major, the Big Dog - just south and east of Orion.
Yes, there is a dragon constellation that is called Draco the Dragon. It can be found in the northern sky. There are also different sized galaxies in the constellation.
The Pleiades is found in the constellation Taurus, the Bull.
The Capella star can be found in the Auriga constellation. It is the brightest star in Auriga.
Vega can be found in the constellation Lyra, which is often depicted as a musical instrument, specifically a lyre, in Greek mythology. This constellation is associated with the myth of Orpheus, a legendary musician and poet.
Constellation Phoenix is a symbolic representation of a rising phoenix bird, typically associated with themes of renewal and rebirth. It is not a recognized constellation in astronomy, but it serves as a metaphorical embodiment of these concepts in various cultures and contexts.