You really can't. That price/quality point basically does not exist anymore
What's worse is that we have "designer brands" that charge the higher price point but are the exact same low quality as the lower price point stuff. Actual midrange quality just plain does not exist
Take your yearly clothing expenditure and multiply it by 10. And then, just like people 200 years ago, be content with 2 to 4 compete outfits. And then stop buying clothes yearly and go more on 10+ year cycle, where you use your funds to mend clothes instead of replacing them.
Even if you only spend $300 on clothes per year, doing it the old school way means you can spend about $15,000 on 2-4 outfits and save the other $15,000 for mending and cleaning over the next 10 years.
I guarantee you you can find a high quality custom outfit for $5000.