Where do UK people buy their HDDs from?

I got a server recently and now I need storage and I’m a little upset seeing the prices of HDDs.

My aim is for 4x10TB to run on RAID 5.

I saw other people linking serverpartdeals and they do ship to the uk but the shipping is insane particularly as I want to buy them one at a time to spread the cost.

So what would you guys suggest? New ones are hella expensive, but I can’t seem to find any decent places selling manufacturer recertified ones.