I found that a few basic towel rails mounted on the back of my wardrobe door works for me :D heels can hang on the rails, or i slot the toe of the shoes in behind the rail. If you've got a spare wall, mounting them on a wall would be even better.... and ballet flats in labelled boxes: 'Dark Coloured Flats' (navy, black) and 'Coloured Flats' (all the other colours ;) ) .....if you need inspo, just search 'shoe storage' on Pinterest. See you in a few hours. LOL

The bookcase is very narrow & if you can remove the shelving, store the contents elsewhere & paint a feature colour or put some wallpaper in the back that suits your decor style (woven grass cloth e.g) & just have a painting or mirror there to simplify what is an entry point to your living room & kitchen. A narrow shelf or two in a dark timber or glass with console display items or a vignette of framed photos could be more decorative too. These canvas photo prints stretched over a frame could look good.Or if you need the space for storage some doors or drawers could be custom made to suit unless you start again. This niche idea could be built in too with lighting added.

Our apartment block has bike rack near where the communal bins are kept. We hang bikes from hooks and there is a chain link on the wall for securing bike locks (it is not a cage).

Ive been researching for quite a while,,and Houzz photos have been a great resource.