I like salad cream, not that name though. It sounds like the cream in a victoria sandwich, as in actual cream, or just very wrong.
What I have noticed is I am very much a fan of sweet dill mustard, really struggle to find it anywhere but IKEA do a good one (sas senap). Realised the other day it’s basically the exact taste as salad cream, just a different texture and looks a bit fancier. They’d be better off getting on the artisan dill mustard gravy train I reckon.