I just bought an A27U, please recommend a dual-screen stand + VESA expansion, and then hang the mini behind the monitor

Are there any V friends who think the same way? Existing AOC U2790PQU 27 "4K + AOC 24" 1080P I bought a new Redmi A27U TypeC 27 "4K and replaced the 24" one. (About 1217 yuan after Shanghai national subsidy + about 20 yuan for JD.com transshipment express delivery) I plan to use the whole double-arm monitor stand again, and the desktop is really clean this time ~ Please recommend a dual-arm monitor stand, and is there a suitable VESA extension that can attach the M4 mini?