You want either the Haier Serenity series or it's GE equivalent, Premium Quite Air Conditioner AHD08LZ or GE Profile PHC08LY . All 3 are essentially the same and 43 DB . In 6K or 8K BTU but will cost you significantly more unless you can find a used one . $300-400

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Then there are the novel U shaped ones from Midea and SoleusAir (Gree)

https://www.amazon.com/dp/B085P27VNF/ref=twister_B085P2519J?_encoding=UTF8&psc=1

https://www.amazon.com/dp/B08677DCKN/ref=twister_B086VZGZDM?_encoding=UTF8&psc=1