https://www.icy-veins.com/d3/crusader-leveling-build-guide

https://www.icy-veins.com/d3/crusader-leveling-and-fresh-70-guide

Kanai's Cube choices are highly build- and content-specific, making them hard to summarize. Generally speaking, Crusaders should store the powers of the following items in the Cube as soon as they have the materials available:
The Furnace
In-geom
Messerschmidt's Reaver
The Mortal Drama
Fate of the Fell
Blade of Prophecy
X Faithful Memory
Akarat's Awakening
Frydehr's Wrath
Shield of Fury
Ivory Tower
X Jekangbord
Guard of Johanna
X Aquila Cuirass
Heart of Iron
Belt of the Trove
Khassett's Cord of Righteousness
Goldwrap
Sacred Harness
Hammer Jammers
Akkhan's Manacles
Bracer of Fury
Gabriel's Vambraces
Nemesis Bracers
Obsidian Ring of the Zodiac
X Ring of Royal Grandeur
Unity
Convention of Elements
x Avarice Band