>>6887862MP G1 Dai Atlas, because that's a huge hole in my Autobot leaders collection.
MMC Barbarian galvatron from IDW. Thought that was a cool design and sad to never see it done as a toy.
Fans Hobby Beast Machines tankor, and a FH ake on RTS Lugnut. A FH G1 Skorponok would also be cool to go along with Power Master prime.
For that mater, fans Hobby Armada anything. I feel like they'd do a great job with that chunky design aesthetic.
A loooot of Beast wars stuff. Mainly a Rampage, Transmetal Megatron, and Transmetal tarantulas. Would also want a Silverbolt, Terrorsaur, Airrazor,a nd season 1 Blackarachnia. Not sure what companies could pull off the more smooth/organic aesthetic though, even with the smooth/tampo printed look of the official MPs.