I just posted in the '2018 concerts' thread. I have the opportunity to go see Mogwai tomorrow. I quite liked their latest album but I've not really listened to anything else.
They have quite a back catalogue bit I'm not sure where to start. Which are their best albums (Like, general consensus, if there is such a thing).
Young Team is considered the best and for good reason - a classic of the genre. Come On Die Young and Happy Songs For Happy People are both really great as well, but I would also highly recommend their live album Special Moves which has bits and pieces from different albums and is almost like a nice greatest hits.
Otherwise I have to mention the criminally overlooked song "Music For A Forgotten Future (The Singing Mountain)", a 20 minute song which was a b-side on Hardcore Will Never Die, But You Will. Not just one of my favorite Mogwai songs but one of my favorite Post-Rock songs period. They have another song in a similar situation, 20-minute behemoth "My Father, My King" which was released on an EP but often forgotten (cause people tend to check the albums) but just a masterpiece.
I always felt like Mogwai deserved more praise in modern discussions of Post-Rock. They are often not talked about as much as GYBE or Sigur Rós, and while I think a main problem is their albums as a whole have rarely reached those levels, they have some mindblowingly amazing songs. Haven't cared much for their last few albums - they're all good/decent, but kinda samey and safe. However, you can go through their albums and find some amazing songs on all of them.