Saturn has the largest radius followed by Jupiter.
The Equatorial radius of Saturn (not the rings) is about 60,268 km
The Equatorial radius of Jupiter (not his rings) is about 71,492 km
so Jupiter is larger
Red hypergiant stars like VY Canis Majoris
On the list provided with the question, all of them have the same radius.
Rigel (beta Orionis) is the brightest star in the constellation Orion and one of the brightest stars in the sky.
Betelgeuse is the red supergiant star at Orion's right shoulder, with Bellatrix - a blue giant - as the left shoulder. If would seem logical that Orion is depicted as facing us.
Betelguese
Mintaka in the Belt of Orion
The neutral atom of potassium has the largest radius.
The largest star in Orion is Betelgeuse with a solar radii of 1,180.
Betelgeuse
The largest known star "VY Canis Majoris" has a 987,600,000 km radius whereas the sun only has a puney 695,500 km radius.
The brightest star in Orion is Rigel.
NML Cygni or V1489 Cygni is a red hypergiant star and the largest star currently known, at about 1,650 times the Sun's radius
Orion is a constellation - a group of stars, not a single star.
The spelling for the pronunciation "beetle juice" is Betelgeuse, which is a bright red supergiant star in the constellation Orion. While much larger in diameter than our own Sun (as much as 1200 times the radius), and one of the largest known stars, it is not the largest. The star Vy Canis Majoris has a diameter estimated at from 1800 to 2200 times that of the Sun.
Orion is a constellation, not a star. Betelgeuse, the red giant at the left shoulder of Orion, is a supergiant.
The dimmest star is Orion is HD 37605 with an apparentmagnitude of 8.69
The star R136a1 by mass and luminosity. The star VY Canis Majoris by radius and volume.
Right below (under) Orion's belt is the Orion Nebula- when viewed with the naked eye it looks just like a star- but it is actually consists of many star(s), dust & clouds. The really bright star in Orion (Orion's "left foot") is the 6th brightest star in the sky- Rigel.
Epsilon Orionis(Alnilam) is a large blue star in the constellation of Orion. It is the centre star of Orions belt.It has a radius about 26 times larger than our own Sun.