hydra deck mtg commander Tribal in - Zaxara, the Exemplary Tech Hydra Tribal with Gargos, Vicious

It is the most appropriate answer to the more extreme decks you might face that will have very serious things down potentially very fast

More specifically, the former can get Magic Broom, Bucket Brigade cards onto the table for less but also allows them to be put back into your hand when they're defeated

The Standard version of Dredge looked to use discard outlets like Llanowar Mentor, Merfolk Looter, and Magus of the Bazaar to get dredgers like Golgari Grave-Troll, Stinkweed Imp, and Life from the Loam into the graveyard

From the very specific card draw commanders like Matoya, Archon Elder to something more general like Niv-Mizzet, Parun, theres a card draw commander for every strategy and power level