to check the link bars have the car on ramp without jacked up & you could insert a metal bar in between them & give it force up & down to see for any movement. also have a look at the link bushes if perished or worn.
if still in doubt & assuming its still the link ends, like above mentioned, undo the bottom shock absorber bolt to apply more pressure on other components & re check them all.
hope you get it sorted as these clonks appear louder on these quiet cars -