This service provides a boost through Tazavesh, the Veiled Market, new megadungeon introduced in 9.1 Chains of Domination patch, with killing all eight bosses. It provides increased 226 ilvl drop from bosses, which can be increased even more to 233 ilvl by switching dungeon to Hard mode.
You can choose between Mythic difficulty (226 ilvl drop) and Mythic Hard mode (233 ilvl drop).
ETA: up to 1 hour
Boost time: about 1 hour
Boost type: Selfplay
Requirements: 60 lvl character with access to Tazavesh dungeon