Options and variety run slim for older/historical homes and buildings.
This goes for things like furniture, architectural elements, and appliances.
What I would like to see added would be:

• Both double and single pocket doors (In a variety of styles, especially of the traditional set)
• Fretwork For door frames, hallways, and staircases
• Interchangeable door and window frames (Pick from any different style frame to place on pre-existing doors and windows)-[for example the traditional door with a Victorian frame]
• Going with interchangeable frames, another feature would be to have a different frame on each side (Color and Style)
• Lace curtains
• More Historical Wallpaper Prints
• Victorian Button Light Switch
• Tiffany Lamps (Standing and Desk)
• Tiffany Lights (Pendants and Chandelier-Both round and rectangle)
• Glass Oil Lamps (Not the grabbable version we have | chandelier version)
• Baseboards and Wainscoting go down stairs
• "C" staircases with interchangeable railings
• Spandrels to match older style railings (In a variety of styles-placed similar to fencing)
• Victorian brackets (Porch and Roof)
• Roof Spires
• Fish scale house siding
• Larger variety of Antique furniture (Such as Wingback chairs, Iron wrought beds, cuckoo clocks, Wall shelves, Hutches, etc etc...)
• Upright pianos
• Vintage/Antique household items (Washboard, Newspaper/magazine holder, crank coffee grinder, inkwell, 1930s desk/floor fans, Bellows Cameras etc)
• Washstand/basin (For hygiene and facial shaving)
• More various wooden picture frames (Especially a smaller oval frame)
• etc etc!! This variety of antiques and historical elements is sure to improve any home, primarily those of the 1880s-1930s. From the charm of tiffany lamps to the simple touch of brass push button switches, I'm confident the feeling of your space will be improved. History is everywhere, so why not have a little here? The elegance of yesteryear would be a great addition to Bloxburg. Timeless designs are simply timeless, you know, so why not have a little vintage in your build too.

(Special thanks to Logan Catson for lovely ideas to add to my list)