The German Official Raspberry forum about the Pi 4 It has 13`000 posts on more than 50 pages about the Pi 4: https://forum-raspberrypi.de/forum/board/154-raspberry-pi-4/ The Englisch Official Orange Pi forum http://www.orangepi.org/ : It has 500 posts on 25 pages about the search topic «Orange Pi»: http://www.orangepi.org/orangepibbsen/search.php?mod=forum&searchid=92&orderby=lastpost&ascdesc=desc&searchsubmit=yes&page=1