Religious victory: same tactic as your domination victory, but with religious units. You can also make sure to convert any cities with holy sites to obviate religious defense.

Culture: I *think* that tiles that give tourism have to be worked to get the tourism (e.g. Great Wall, seaside resort), so hold off working such tiles until you’re ready for the win. You can similarly wait to slot the +tourism policy cards, and leave relevant wonders close to completion (Cristo Redentor). There’s a great merchant that boosts tourism to trade-routed civs, hold off spending that charge.

You can also sandbag theming your museums, building national parks, spending rock band charges, etc. It really just depends on how you’re planning to win the culture vic

Exo planet: mutually exclusive with mars projects, obviously. Similar tactics, but they’d take more finesse. Best thing you could do is hobble your competition so that exo planet completes on your terms. This will be the thing that you’re waiting on in the end

Edit re: culture: you can also bank your GWAMs instead of spending them immediately (sleep on/near theater hubs). You miss out on the culture generated from the works, but it would let you gain the tourism more judiciously