Thoughts on mixing elevated corporate pieces with everyday weekend wear?

I’m trying to be more mindful about spending and clothing consumption, while also prioritizing natural fibers. My day job falls under creative corporate, but on a client day it would appropriate to trend more business professional. My personal style and what I feel most comfortable in leans a bit tomboy preppy with 70s inspired silhouettes - think button down oxfords, flared trousers, nice loafers or pointed boot.

With that in mind, there are a few investment pieces on my wish list (mostly secondhand/vintage) that I want to also start incorporating into my weekend wardrobe. This will help me cut down on closet space, justify the investment pieces, and hopefully also help project a more polished appearance as I enter my mid-30s.

Are there any influencers, blogs, or brands you follow and would recommend for inspiration? How are you incorporating “nicer” materials - silk, wool, cashmere, etc - and pieces - blazers, trousers, heels, etc - into your weekend daytime outfit rotation?