I find myself with a lot of clothes but not a lot of outfits if you know what I mean.
I would def go the minimalist route.
Staple pieces: really good fitting jeans, skirts, trousers
blouses and tops (causal and dressy)
A few dresses (casual and dressy)
2 really good quality cardigans
I don't really like bright colours so I would keep it really neutral. Greys, creams, browns, taupe, navys etc.
2 jackets/coats - One for dressy type outings and the other for more casual.
For shoes, Id literally want 2/3 pairs of heels in neutral colours so that they go with everything (I love court heels). A pair of white trainers, pair of flats, and a pair of sandals.