I would say the Long Now Foundation [0] is influenced by Fuller and his ideas, carrying forward the values of planetary systems engineering and long-term thinking. It's a little farther afield (or crackpot depending who you ask), but The Venus Project [1] covers similar ground. And of course, while Fuller never explicitly advocated UBI, Yang and COVID have recently conspired to move the idea into the Overton Window.
[0] http://longnow.org/
[1] https://www.thevenusproject.com/