Break this down into two steps to make it easier. Tackle function first. Don't worry about a valance until after you live with the shade for a while. Get dressed and go to the stores and play with their displays. Find one that give you privacy, but also works with your fan. The valance is just fluff and you might decide that with your clean lines that you don't want one. The pleated shades that Daisy mentioned sounds just like what you need. Even a nice tailored pulldown sounds great with your Shaker-style furniture.

I recently bought a product called Veilish. It’s a window film made with fabric material. It’s semi-transparent, so it can provide indoor privacy without blocking the view outdoors. The best thing is that it is self-adhesive, and it can be installed and removed easily, so you don’t need an installation expert. I think you will definitely be satisfied with this product.

Sorry I disappeared. Regarding the main objectives: Our location is SoCal, and a majority of our windows face the South. So a lot of sunlight. Blocking the direct light falling in house is important, but we don't want to cut it out completely making the house dark (for the living room, kitchen and other common areas), And in the bedrooms we do want the blackout. The house is not fully furnished yet as we moved from a small apartment to this place, and that project is a separate work in progress. But from a general preference standpoint, we like the Earth Tones in colors, simple clean lines with the styles, and natural wood options as much as we can. In the kitchen almost everything is stainless color. And currently the flooring is a combination of dark brown and grey, and the carpet is tan. But we want to change the flooring to a lighter brown+grey type of LVP when the budget permits. So, any window treatment that is kind of neutral and can work with the current flooring as well as future changes would be great. Not sure if it is possible to give any ideas based on this info. And I know it is difficult without the real pictures.

I would extend the fabric/rod beyond the window to open up the space as much as possible. a Textured Linen panel (matching the wall color) on rings for easy open/close. Limit the decor, a small room would benefit from trim paint the same color as wall color. a simple top down/bottom blind for privacy and light control Blinds.com offers great options.