Reanimator Necromancer V 2.0 (EDH / Commander)

The idea is to quickly discard high-cost creatures to the graveyard, either from the deck or from the hand, ramp with green cards, and use reanimation spells to bring those creatures onto the battlefield.
Prioritize cards to draw and discard cards from your hand. During the first turns, ramp up with as many lands as possible, aided by rocks, small creatures, and land-search spells.
Kenrith's final ability allows for reanimation. It's used when there aren't many reanimation resources in hand, depending on the situation and how full the graveyard is.
Against aggro decks, it's important to hold out for a few turns to use board wipes and then reanimate your creatures.
The Big Creatures can change as you like depending on what you like to play.

Depending on the situation, the priority cards to search with graveyard tutors to reanimate would be:
Jin-Gitaxias, Core Augur > Draw Cards - Control
Atraxa, Grand Unifier > Draw Cards - Life
Vorinclex, Voice of Hunger > Ramp - Control
Elesh Norn, Grand Cenobite > Removal - Board
Sheoldred, Whispering One > Reanimation - Control

If you have many tutors, you can attempt to make combos with 2-3 possible cards.

• Abdel Adrian, Gorion's Ward + Animate Dead or Necromancy or Dance of the Dead = Infinite 1/1 Soldiers - https://edhrec.com/combos/wb/11459
• Kenrith, the Returned King + Composite Golem + Training Grounds or Biomancer's Familiar or Zirda, the Dawnwaker = Infinite Mana - https://edhrec.com/combos/wubrg/1665
• Kenrith, the Returned King + Peregrine Drake + Ashnod's Altar = Inifite Colorless Mana - https://edhrec.com/combos/wubrg/2034-3821-5140
• Nim Deathmantle + Ashnod's Altar + Grave Titan or Wurmcoil Engine = Infinite Tokens, Infinite Colorless Mana - https://edhrec.com/combos/b/16257
• Faeburrow Elder or Bloom Tender or Incubation Druid + Freed from the Real + (Kinnan, Bonder Prodigy)= Infinite Mana (Infinite Kinan skills) - https://edhrec.com/combos/gu/4222-5168 - https://edhrec.com/combos/gwu/129-570-4222
• Zirda, the Dawnwaker + Basalt Monolith = Infinite Colorless Mana - https://edhrec.com/combos/rw/2713-4131
• Incubation Druid + Nyxbloom Ancient = Infinte Mana - https://edhrec.com/combos/g/10728
• Basalt Monolith + Nyxbloom Ancient
• Basalt Monolith + Rings of Brighthearth
• Basalt Monolith + Kinnan, Bonder Prodigy

With infite ETB u can use Impact Tremors
Staff of Domination and Dino DNA can be very useful with infite colorless mana

• Staff of Domination
• Emiel the Blessed + Faeburrow Elder (3+ Mana) + Lightning Graves - https://edhrec.com/combos/gw/570-876-4499
• Emiel the Blessed + Peregrine Drake = Infinite Mana - https://edhrec.com/combos/gwu/3821-4499
• Emiel the Blessed + Abdel Adrian, Gorion's Ward + 4Mana Permanents = Infinite Blink - https://edhrec.com/combos/gw/372-4499
• Cephalid Illusionist + Lightning Greaves + Another creature + Reanimate Thassa's Oracle = Mill Deck Win
• Witherbloom Apprentice + Chain of Smog = Copy Discard Win
• Heliod, Sun-Crowned + Walking Ballista

Reanimations, Tutors, Graveyard Tutors, Force of Will (Counters), Unburial Rites flashback, Priest of Fell Rites unearth, Sun Titan and Unmarked Grave for artifacts, these are cards that help a lot to generate or have combo alternatives.