A good discovery fragrance set..

[RachelRosing]

For a 23 year old male - it's a birthday gift.
Anyone recommend something?

I seem to remember this being well received by someone of around that age. Can’t recall exactly which fragrances were chosen:

https://www.hermes.com/uk/en/product/compose-your-own-set-of-4-travel-sizes-V4NOMADEGIFT/

Alternatively you could choose a sample set or a sample subscription from

Bloom Perfumery

That’s just one example out of several. Lots of different niche brands.

Penhaligons - you can get at Sephora
they’re a very sophisticated range of fragrances and smell expensive

Thank you - like the look of Bloom Perfumery