I'd suggest taking a look at Morrowind Rebirth

All the alternatives seem to involved managing a plethora of mini-mods that hopefully work together.. it's really easy to install and it turns the game instantly from a drab/stale/dated look to something a lot busier and lively - at least at a surface level. Maybe it has some issues that I'm just not aware of - I never really got far in playing it

I'd be curious what other people thought of it. It seems to never be mentioned in lists and "hardcore" players seem to not like it for some reason