That being said, all the best red token generators can be roughly grouped into: Those that create Treasures, Those that create a copy of a creature you control, usually exiling or sacrificing it at the end of combat or end of turn, Those that spawn 1/1 creature tokens, Those that create some really big dragons
Creatures that make mana (mana dorks), artifacts that make mana (mana rocks), Rampant GrowthRampant Growth-type effects, "rituals" like Dark RitualDark Ritual, cards that make Treasure tokens
As my stockpile of cards continues to grow, Im sure Ill make some basic refinements, such as dividing cards by specific type instead of having general categories
Invasion of Alara Jodah, the Unifier Maelstrom Nexus Mass of Mysteries Meeting of the Five Niv-Mizzet, Supreme O-Kagachi, Vengeful Kami Primeval Spawn Sliver Gravemother The First Sliver The Kami War Unite the Coalition