Use the Djinn's special rule. All players know what it is.
MIDNIGHT IN SPLATSVILLE JINXES
Marina Agitando + Cuttlefish - Marina Agitando cannot move Cuttlefish's Dehydrated reminder token, or alter it in any way shape or form.
Marina Agitando + Pearl - Marina Agitando cannot move Pearl's Out of Ink reminder token, or alter it in any way shape or form.
Marina Agitando + Zapfish - If Marina Agitando has been in play at any point, the Zapfish is poisoned, and cannot be made sober again.
Marina Agitando + Acht - If Acht is in play and alive, Marina Agitando cannot see the grimoire. They can, however, still move one reminder token, but they will not be able to tell who has any or what is happening as a result. When Acht dies, regardless of if they are sober or not at the time, Marina Agitando can see the Grimoire again.
Goldie + Acht - If Acht is in play, all Goldies register as a Minion to their ability. They will still learn eachother, but they will not learn bluffs. Additionally, if Goldies are capable of communicating at night, they will be unable to do so until Acht dies.
Commander Tartar + Acht - If Acht is in play, Commander Tartar does not pick the evil townsfolk. They are picked by the Storyteller.
VANILLA JINXES
Acht + Vortox - probably just don't do this. it's like poppy grower okay
Crusty Sean + Vortox - another one i'd argue you dont run at all, as there's no real way to solve the conflict here without nerfing the hell out of the other.
O.R.C.A. + Legion - i'd also argue Don't but if you want to, Instead of one of the three players needing to be the opposite alignment, one must be the same alignment as you.
Octostamp + Legion - don't do this. the demon is like, ten bitches. it's fine with goldie since goldie's entire thing is voting anyway but legion will have no interaction with glowflies anyway so honestly just get his ass outta here
Marina Agitando + Damsel - if Marina Agitando has been in play at any point, the Damsel is poisoned.
Marina Agitando + Heretic - if Marina Agitando has been in play at any point, the Heretic is poisoned.
Marina Agitando + Magician - If the Magician is in play, when Marina Agitando sees the Grimoire the Demon and the Magician's tokens are removed. Marina Agitando cannot move reminder tokens to or from either of these players.
Marina Agitando + Poppy Grower - If the Poppy Grower is in play, Marina Agitando cannot see the grimoire. They can, however, still move one reminder token, but they will not be able to tell who has any or what is happening as a result.
Marina Agitando + Alchemist - If the Alchemist has Marina Agitando's ability, they cannot see the Grimoire. However, they can instead move ALL reminder tokens from one player to another.
Goldie + Summoner - If the Summoner creates Goldie, all minions become Goldie.
Commander Tartar + Summoner - If the Summoner creates Commander Tartar, all minions become evil townsfolk and Commander Tartar only picks one extra player.
Commander Tartar + Damsel - Don't. No minions.
Commander Tartar + Bounty Hunter - If the Bounty Hunter is made evil, they do not make an extra player evil.
Recluse + Glowflies - optional but it would be really funny if glowflied recluse always registers as good
TURF WAR JINXES
Marina Agitando - Marina Agitando cannot see what teams players are on. If you have reminder tokens for teams on your grim, remove them before showing Marina Agitando the grimoire.
Goldie - All three Goldie players will be on the same team and vote normally.
Commander Tartar - Instead of making people evil, Tartar can instead pick two players to swap teams at any point during the game.