The vertical one is a fairly cheap one off of Amazon, which I can highly reccomend, especially at the price. As for the one on the left, I ordered it via a Dutch webshop so I doubt it will be of any use to you. This one was more of a bitch to put together, and the quality isn't all that great.
The vertical one (german amazon): https://www.amazon.de/dp/B00P1802RW/ref=pe_3044161_189395811_TE_3p_dp_1
It’s just have a long vertical stand, but the base is off axis to the left. It’s behind my thumb in that picture.
I like them vertically mounted so I don’t have to twist my neck all the time. I just can just stick a YouTube video on the top screen and lean back in my chair. Maximum Chill 👌🏻
I recently bought a duo desk mount from Amazon.de, but there are alternatives in every version of Amazon:
Duronic DMV2 https://www.amazon.de/dp/B00P1802RW/ref=cm_sw_r_cp_api_i_CuRfFb90PFHFZ
Can hold two screens from 13” to 32” and works for my combo.
Duronic Dual Screen Monitor Stand DM35V2X1 | Double/Twin PC Desk Mount | Aluminium | Adjustable | For Two 13-27 Inch LED LCD Screens | VESA 75/100 | 8kg Per Screen | Tilt -15°/+15°,Swivel 180°,Rotate 360° https://www.amazon.co.uk/dp/B00P1802RW/ref=cm_sw_r_cp_api_i_K5MEV4TPRJ04HHY2VP22
Found it on my Amazon orders, here you are! (Duronic DM35V2X1 Double Twin LCD LED Vertical Desk Mount Arm Monitor Stand Bracket with Tilt and Swivel (Tilt ±15°|Swivel 180°|Rotate 360°) + 10 Year Warranty https://www.amazon.co.uk/dp/B00P1802RW/ref=cm_sw_r_cp_apa_0WMVAbTK9AGKY)
This is a dual monitor mount, links below;
Duronic Dual Screen Monitor Stand... https://www.amazon.co.uk/dp/B00P1802RW?ref=ppx_pop_mob_ap_share
I have tiny little YouTube channel where I will be uploading a video on this setup soon, have a look if interested.
https://www.amazon.co.uk/dp/B00P1802RW/ref=cm_sw_r_cp_api_glt_fabc_QVMGCDHDMRETWE41WCNJ
I had to 3D print some custom spacers to get the screens to align at these angle though
It's a vertical dual monitor mount: Duronic Dual Screen Monitor Stand DM35V2X1 - https://www.amazon.co.uk/gp/product/B00P1802RW/
I've also used the ones linked by the OP here: https://old.reddit.com/r/pcmasterrace/comments/ps3ixr/beam_me_up_scotty/hdn3lbw/
I have this one. Don’t know how heavy your 32” is, but it is strong enough to keep my 32” and it should be able to keep 2 of my 32”. https://www.amazon.nl/dp/B00P1802RW/ref=cm_sw_r_cp_apip_yMVdvKViCbs7K
This one. Nothing fancy but solid enough to support a couple of heavy screens.
Would something like that fit my two 27s? They're pretty heavy lol