Even though I haven’t actually seen a fic of it I love cracky versions of Tarn/Optimus. Specifically Idw Tarn getting Isekai’d to any no/pre-war au. He tries to find Megatron but along the way he rizzes Optimus/Orion Pax.
Could be TfOne where Orion finds this Megatronus in-personator cool.
Could be an actor au where Optimus is glad to find someone who’s just a big fan of the celebrity Megatron as him.
Could be Tarn going to some random archive to find Megatron and Orion is captivated by this strong mech and wonders who this ‘Megatron’ is.
Could be Tarn trying to gain the love of Megatron but Optimus is clearly in love with Tarn so Megatron is subtly pushing Tarn to Optimus’s way.
Could be fucking Cyberverse where Optimus needs his daily Toxic Yaoi or else he dies or something.
It is important that this isn’t on purpose. At most its Tarn finding out Optimus has a crush /afterwards/ and trying to use this as a way to gain the upper hand against the (potentional) Autobots.
Intriguing!! Several fun options here :3
Could be fucking Cyberverse where Optimus needs his daily Toxic Yaoi or else he dies or something
^^^ see this is fucking killing me because the main fic that comes to mind when I think of optitarn is that one cyberverse fic where Optimus is the main/sole person trying to pspsps Tarn into redemption and Tarn literally breaks into the fucker's house😭😭😭 Cyberverse Optimus is wild
Many fun options!! REALLY funny to imagine a situation where Megatron sees the very moment his bestie falls fir the big scary purple asshole and decides "ykw sure I should set them up together"