I’ll swear by Amazon Basics arms. I have seen many difference once at work and the Amazon Basics are best.
Ive got these form Vari.com
I think they are tadddd overpriced but honestly worth evey cent. I Just move them however i want without having to tighten or lossen anything. So, if I want a more immersive experience when playing game or watching a movie, I just pull one monitor closer to my face without really any hassle.
I’ve been using two of these for a long time and I like them a lot. I also have had some ergotrons and amazon basics/monoprice over the years but these have been the best for me.