Have you tried checking online stores from countries where the car is actually manufactured (India/China/Thailand)? That's usually my go-to unless the car is also available in the USA, in which case I shop from Amazon.

No idea if these will fit, but Swift CV joints are P2k a piece lang without need to get whole assembly.

inner c v joint axle shaft half shaft Drive shaft cv joint for Suzuki Grand Vitara Swift Vitara Jimny|cv drive shaft|cv joint drive shaftcv axle shaft - AliExpress

outer c v joint axle shaft half shaft Drive shaft cv joint for Suzuki Grand Vitara Swift Vitara Jimny|cv drive shaft|cv joint drive shaftcv axle shaft - AliExpress

I'm sure available yan for the Ciaz per piece (not whole assembly) from India because they're also a very price-sensitive market (IMO even more than us), and the Maruti factory is right there.