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
X 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
X 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