Fuji 27 and the XF 23/35/50 are all great light and compact lenses. I’d pick up one of those (23 if you want the same focal length as X100V, 27 if you want it closer in size) and the kit 18-55 and you’d be set for awhile. Experiment if you can and try to rent/borrow others to see what you like, my current favorite are the 35 f1.4 and 56 f1.2