Anything by Ergotron is excellent. They are very expensive but the magic is that you can buy parts after the fact, like an extra arm or extra swing arm section later as your needs change. You can clamp them or drill through your desk if you prefer, and the clamp can be split in two for easy installation. No regrets.
For example I got a tall LX pole, initially bought for an Ultrawide (check the weight restrictions!) with two arms, then later got a third arm and an extension for the existing arm when my work configuration changed, then a laptop support plate.