Hovercraft: They’re not exactly common in the U.S. but the U.K. has a bunch. You can even buy a personal one for like 30K… not exactly cheap but not unattainable.

Flying Cars: Theoretically there’s the Molor sky car with its 9 Mazda engines… but with gas prices… and the whole lack of an untethered demo, stick with the hovercraft.

Rocket Packs: Primary problem is they burn off your assmeats. There is actually a “Rocket Man” though. Ieves Rossi or something like that. IIRC he actually sells the suits. And there’s a few folks who still make the 70’s era peroxide jet packs, but you only get like 90 seconds.

Mass Transit: California is building a high speed rail line 😂 The networks will probably always be imperfect at best, but the rise of small EVs (bikes, scooters, etc.) seems poised to bridge the gap.