I may have bought a few 😇 Harrods and Look Fantastic sold out long ago, but harvey nicks and SpaceNk are still available and great options.
SpaceNk has 2 full size perfumes and I would say are easier to repurchase any favourites.
Harvey nichols is more niche, the fragrances are expensive but lovely 😍
I have both and really like them for different reasons.
There's also the perfume shop and the fragrance shop that have mixed brand perfume advent calendars, I'm not sure if they're still available. I haven't bought either so I can't recommend.