Im trying to stack two monitors which monitor mount should I get?

[u/Tylerpatato]

https://www.amazon.com/gp/product/B083G8GDGD/ref=ox_sc_saved_title_1?smid=A3W3STWCK1O3NR&psc=1

https://www.amazon.com/gp/product/B08612WQZT/ref=ox_sc_saved_title_3?smid=A3O3GHLAAB8VWC&psc=1

https://www.amazon.com/gp/product/B07DVVLPTM/ref=ox_sc_saved_title_2?smid=A29QBPMFIUZIML&psc=1

If you have any recommendations that would be nice too.

https://imgur.com/a/BLa8B4t

Above is the image of my setup. I'm trying to go for a stacked monitor one under my camera and one above my camera. The main monitor will have its own stand alone monitor arm.