Oh hey, it's the artist from artshare with all the characters. It's me, the commenter that brought Wumbo to the "Oops" (or something space station.
In australia, the Barra engine comes to mind. It's like the Ford version of the Toyota i6 but it's as common as Americans find ford V6s. The Duratec mentioned above comes from knowing the 2.5L i4 is the dog of ford engines but the dream of 3rd gen Miata owners that have a 2.0 Duratec. I beleive they're pushing 250hp with bolt on, maybe 300 with an obnoxious cam, or 400 with boost. No, it's not a 1000hp supra, but it's a $300 engine from the least-abused Fords. Push rod ford v8s (302/5.0) are still common junkyard-sourced swaps for ford and ford-adjacent vehicles. GM V6s have some strong builds based around their atout reliability. I want to say the 3800 series and some LT# but I'm not as familiar.
Engine swap diversity took a hit in the 90s as EFI made control a headache and basic carb engines got phased out, but I'd say we're well into a new era where standalone engine management can overcome most swaps. It's back to just making it physically fit. And having a bunch of disposable money and time.