The plug-in of Ian Barrow, Conversis, for translating Figma content is the best state of the art way to translate Figma content in professional translation processes.
And translate5 is the only tool supported by Ian's Figma plug-in, that supports translating Figma content with real-time preview.
Another plug-in of a competitor can also do something similar, but translate5 is probably much better.
Check it out