Maybe Yidris would work well for adventures?
Seems fine, barring that Yidris won't trigger on the creature being cast from adventure-exile, and generally the adventure portions are cheaper than the creature side. The ruling here looks kindof wonky because adventure is a stupid fucking design.
Basically, if you cast a spell that costs 3, you need to hit a spell whose main, non-adventure side is less than three. Then, you may cast that side. You may also cast the adventure side, if the adventure is less than 3. But if the main side of the spell is more than three, it doesn't matter if the adventure is less than three: you keep exiling for the cascade effect and skip over the card.
So to say, if you cast animating Faerie's front-half (3cmc) and you flip into Altar of Bhaal (2cmc), you may then play Altar of Bhaal but not its adventure Bone Offering (3cmc). If you clip into Bonecrusher Giant (3cmc), it doesn't matter that Stomp is only 2cmc, you keep flipping. If you hit Ghost Lantern (1cmc), you may either play it front-faced or play Bind Spirit (2cmc).
The main advantage of Yidris is that he has green for Innkeeper. The cascade thing isn't meaningfully different from how Ydris's cascade normally shits out value.
But honestly, adventure is a dumb mechanic that you can't really 'build' around. Innkeeper is fine, but Lucky Clover is the actual value card. So Gorion is good because he's a second copy of it in your command zone. However, Kess Dissident Mage works, because she doesn't target - she just says you "may cast" them from the graveyard (unlike Toshiro Umezawa, who has to target them - but can't, because they are their main-side in the graveyard). The Temur commander is pretty bad for this role, because it doesn't get a second lucky clover and it doesn't really interact with adventures in a meaningful way (a 1 cmc discount on one half of the card is piddly).
Blue-black also gets access to Havengul Lich, which has an interesting interaction. You may cast target creature card in a graveyard. But you don't have to cast it as a creature - the Lich allows you to cast -that card-, it just cares that during targeting the card is a creature card. If you cast it as the adventure, this works properly, though Lich obviously doesn't gain the activated abilities of the main-side of the card. This interaction also works for the dual-faced Kaldheim Gods, for example, allowing you to cast a Kaldring, the Rimestaff and immediately tap the Lich to play target snow permanent from your GY.
