Comment by crooked-v
The specific company I would point to is Ergotron. In the worst case you can just daisy-chain extra arm extensions as long as it's within the total weight limit, and I'm 100% confident after using the same monitor arms for years that the result would be reasonably stable.
There used to be also some Amazon Basics branded ones that are also produced by Ergotron (or the same factory that produces Ergotron - not sure). They were 100% compatible, and looked/functioned the same for quarter of the price.