I'm thinking about servos too. I saw This Old Tony's video where he uses Leadshine servos and it makes it clear to me the tuning software is just as important an aspect as the hardware. https://www.youtube.com/watch?v=tiVWBOBUlaA&t=1485s

However those leadshine ones are still kind of pricy if you can even find the current models on a Chinese market place. I costed them up as about £200 for the driver (www.shop.cncdrive.com/index.php?categoryID=168) and £300 for the motor (Polish website I can't even find again).

However I've heard many also recommend Delta servos and they seem to be priced somewhere between Leadshine and Lichuan and their software website also mentions some advanced software tuning such as automatic resonance detection and notch filtering.

https://www.deltaww.com/en-US/produc...and-Drives/225