Many upscale fitness brands took the digital dive a while ago to accommodate their clientele’s peripatetic lifestyles. If your personal trainer isn’t available for a virtual session, on-demand workouts are offered through Exhale, AKT by celebrity trainer Anna Kaiser, the Class by Taryn Toomey, and Tracy Anderson, who recently introduced a wellness magazine. Peloton and Mirror are other innovative options, too. exhalespa.com. theakt.com. theclass.com. tracyanderson.com. onepeloton.com. mirror.co