Sandsteppe Citadelmana_fixing$0.42A tri-land that enters tapped and fixes three colors, serving the same role in Abzan-style mana bases.
Mystic Monasterymana_fixing$0.29Another tapped tri-land with flexible three-color fixing, best in Jeskai decks but functionally similar as a color fixer.
Crumbling Necropolismana_fixing$0.32A tapped three-color land that produces any of its shard colors, offering the same fixing role in Grixis decks.
Arcane Sanctummana_fixing$0.42A tapped tri-land that fixes three colors, closely matching Nomad Outpost's role as a budget mana base piece.
Savage Landsmana_fixing$0.59A Jund tri-land that enters tapped and taps for one of three colors, functioning similarly as multicolor fixing.
Seaside Citadelmana_fixing$0.37A tapped tri-land with three-color fixing; same functional category, just in Bant colors instead of Mardu.
Secluded Courtyardmana_fixing$0.33Not a tri-land, but it is a strong mana-fixing land that can produce any color for chosen creature types, serving a similar fixing slot in tribal decks.
Exotic Orchardmana_fixing$0.31A flexible multicolor land that often taps for the colors you need in multiplayer, providing comparable fixing in many Commander decks.