1. Bathing for Jumu’ah

The Prophet ﷺ said: “Whoever makes wudu’ on Jum’ah has done well, and whoever takes a bath, taking a bath is better (for him).” [ narrated by Abu Dawud.]
2. Taking a Ghusl before Assuming the State of Al-Ihram for Umrah or Hajj.
Zaid Ibn Tha’bit t said : “I saw the Prophet ﷺ take off his regular clothes and take a bath (for hajj).” [ narrated by At-Tirmidhi.]
3. Taking a Bath after Washing The Dead.
The Prophet ﷺ said: “Whosoever washes the dead should take a bath (afterwards).” [ narrated by Ibn Majah.]
4. Taking a Bath after Each Round of Sex.
source: https://www.al-feqh.com/en/al-ghusl