Re: Heirs to Stereolab
There's a lot of artists who have been inspired by The Groop, and to greater or lesser degrees echo them in their sound, and we could all have fun making lists debating the +/- of neo-Lab artists. But I think the "lab" aspect of "Stereolab" is going to be impossible to match in terms of their influence in pulling together so many forgotten sounds and making them their own.
I don't think that anybody out there comes close to fulfilling the Stereolab legacy, but two artists I'd nominate that have been growing from album to album while retaining familiar threads would have to be Broadcast and Caribou. Each has changed in profound ways over the last 10-15 years. After that, I'm not so confident.