I would actually love to see Trolley busses in my city (Melbourne). You could have models with battery storage, so they charge up using the overhead tram lines we already have, and then can extend past the ends of them.

Seattle, WA also still has a trolley bus network. They started taking it out, but fortunately a big chunk was saved and they’re adding to it again.

They had those in the 1980s in Eastern Germany.

They have those in Vancouver, Canada as well, when I saw that for the first time (early 2000s) my reaction was “why are we too stupid to use those in Montreal?”

They run those in San Francisco as well.

https://en.wikipedia.org/wiki/Trolleybuses_in_San_Francisco

Same in Arnhem, Netherlands