Bathroom Vanity Unit help?

[NotMyFIrstTIme]

I'm looking for a 800mm wide bathroom vanity that either allows for a countertop basin, like the first pic, or has a basin area that is NOT the full width of the unit, similar to the second. It must be to the floor as I want to maximise storage.
I'm going cross-eyed looking at eleventy million websites so if anyone has any suggestions, I'd be vey grateful.

It is fairly easy to make a vanity unit from other bits of furniture. You could find a cabinet you like and buy an undermount sink and ask your bathroom fitter if they can make you a vanity unit.

QS supplies is my go to for bathroom stuff. Lots of choice - even if the picture shows the wrong sort of sink you can generally choose without so you can put your own top on.

Thank you - off to take a look!

I've thought of that and might have to go that route but was hoping not to as I need another, different sized cabinet for the shower room as well and wanted a smaller but matching vanity for the bathroom.