If you’re in the UK, the remainders chain The Works currently has a sale on a load of Rio Grande boardgames. Both on their website and in the shops themselves.
I picked up this bunch (Unexpected Treasures, Havana, Spin Monkeys, Fürstenfeld, Darjeeling):
for about fifty quid, free delivery. I’ve not previously played any of them, but the reviews and so on on BGG looked good, and you can’t really argue at that price.
I think the selection in shops varies from what’s on the website, looking at what other people have said they’ve picked up. So if you have a local The Works it’ll be worth a look!