Remmina, RealVNC Connect, mRemoteNG, TeamViewer, AnyDesk, RustDesk, UltraVNC, TightVNC, Chrome Remote Desktop, DWService, MeshCentral, GoTo Resolve, Kickidler, NetSupport Manager, NuoRDS Terminal Server for Mac, AweSun Remote Desktop, Splashtop Remote Support are some alternatives to Desktopable.