If you like the NEVC playlist make sure to also find the Facebook page. I'm getting occasionally decent at posting reminders/reruns there. Anyway, these are... Videos shot from the handlebars with a GoPro, mainly in central New England (Mass/NH/VT border). Lots of rail trails with a few road rides mixed in. Zwift compatible? No idea. Probably not. Free though. And since nobody's saying anything in these videos I can attempt to appeal to the global market by typing "virtual cycling" and "bike training" into a bunch of different languages...
仮想サイクリング, virtuelle vélo, virtual rowerowa, virtuální jízda na kole, virtuellen Rad, εικονικό ποδηλασία, rothaíocht fíorúil, virtuale in bicicletta, 가상 사이클링, virtualus dviračių, ciclismo virtuais, virtuale de ciclism, виртуальная езда на велосипеде, virtual de ciclismo. "bike training" bike školení, entraînement vélo, Radtraining, εκπαίδευση ποδήλατο, reiðhjól þjálfun, bicicletta formazione, 自転車トレーニング, dviračių mokymas, sykkel trening, rower treningowy, treinamento de moto, bicicleta de formare, велосипед обучения, bicicleta de entrenamiento,
Videos of hikes you can enjoy from the comfort of a treadmill.
I have another playlist called "virtual hiking," but a lot of the ones in that are a bit too fast and were mostly intended for people to simply get an idea of what the terrain looks like before heading out.