Really depends what you use it for (dual pane SSH file manager/FTP file manager/file manager). You can do this with Nautilus or Fman plus GNOME if you want to,

Really depends what you use it for (dual pane SSH file manager/FTP file manager/file manager). You can do this with Nautilus or Fman plus GNOME if you want to, since gvfs abstracts protocols such as FTP, SSH, SMB, ... On Windows you go such as well, including Fuse/Dokan, and on macOS you got MacFuse. Hence on macOS I use (by default CLI but if that does not cut it) Finder/Fman, and if that doesn't work, Cyberduck. Fman and Cyberduck also work on Windows, on Linux Cyberduck does not work but Fman does. CrossFTP might also work for you, as might Wine. I'm not sure about all features, such as FXP (which is insecure anyway, and only used in scene).