The best device for 3D support in LE is a Raspberry Pi 3B+ running the LE 9.2.x image; newer images use a revised video pipeline that doesn't support 3D yet (and maybe never will since it's not a big priority these days) and there is no support for 3D in the current Amlogic releases. It might work in older Amlogic releases but you can expect limited/no support on those now (different codebase, all the developers that hacked it are long gone). If you go RPi, use a simple HDMI > S/PDIF splitter for audio (or a DAC card, but that costs more).
Or you can use the cheap Android box with Kodi on Android .. which prob. works enough for playing occasional 3D movies.