https://www.enchantedlearning.com/subjects/astronomy/stars/lifecycle/giant.shtml
Star Death (Largest Stars) - Enchanted Learning
Learn how the largest stars in the universe will eventually supernova and then collapse, turning into black holes.
star deathlargest starsenchantedlearning
https://astroplus.ua.es/
Astro+ | Largest High Mass Stars Database
Astro+ is an aplication where astrophysicists can search and upload to the database to study OB Massive stars and Red Supergiants
high massastrolargeststarsdatabase