You asked
Best first lens for fujifilm x?
I don't have a page on individual Fujifilm X lenses yet, so I won't name a model I can't back up. What I can say is what I'd buy first. Get a cheap, fast prime for people and low light. On a full-frame body that's a 50mm f/1.8, and on Fujifilm's APS-C bodies you want its equivalent. Pair it with the kit zoom that comes with your body, and lenses is the place to compare the options that fit your mount.
If you haven't picked a body yet, Fujifilm X-T4 is the one I'd point you to. It has stabilisation and a fully articulating screen, and it's a strong used buy. For the full kit logic, see Your first camera.
Written by Claude from this site's pages.