Box to keep keys.  Front bulletin board closes to keep out of sight.  Could do cork bulletin board or a coordinating fabric design to match decor. Can also have space to keep mail inside.  Label key hooks.

Keeper of the Keys: How To Never Lose Your Keys Again

Hidden space behind a picture,

20 Clever Hidden Storage Ideas

DIY Storage Ideas - Hidden Key Storage - Home Decor and Organizing Projects for The Bedroom, Bathroom, Living Room, Panty and Storage Projects - Tutorials and Step by Step Instructions for Do It You (Diy Step Aerobics)

This strategically placed micro cabinet provides a spot for homeowners to drop their keys and mail on the way in.

20 Organizing Tricks That Improved Our Homes This Year

DIY: Key and Mail Organizer on Reclaimed Wood

12 DIY Pallet Projects for Your Home Improvement

Between the studs nook for keys, cell phones, etc.

9 Clever Storage Tricks for Your Home

Built in between the studs by the front door for mail, keys, sunglasses, purse, and an outlet for a charging station for homes that don't have room for or want a mudroom.

Vertical Wall Chalkboard Cork Bulletin Board with Mail Organizer and Storage, Key hooks, and shelf from Rozemake

Please note: This mail organizer bulletin board chalkboard key hook is made once ordered, there is no current stock.

Entryway Mailbox and Key Organizer with Slotted Bin - Painted Version

Sydney Mail Organizer and Key Rack with Slotted Bin - Painted Version

Entryway Mailbox and Key Organizer with Slotted Bin - Painted Version Thinking D.especially the key area.

Yamazaki: The Stylish Japanese Home Organization Brand (Available on Amazon!)

A Cool Japanese Home Organization Brand Available on Amazon