Are all 10 speed chains the same

So after 3000 very wet km it seems my chain on my rx9 is way past 75% worn (and I have gone through a set of brake pads I now realise)

Question is, the bike came with a kmc chain – should I buy a 10 speed kmc or can I put a 10 speed ulegra or even old xt ? Is 10 speed – 10 speed ? The cassette is tiagra and the mech is rx400 if this helps

Yep 10 is 10

Get the nicest Shimano that you can with siltec

Thank you !