You asked
Best travel lens for the fujifilm x t30?
For a travel zoom on the X-T30, I'd start with the Fujifilm XF 16-80mm f/4 R OIS WR. It covers roughly 24-120mm in full-frame terms, so one lens handles streets, food, landscapes and people, and it's weather sealed. The body has no stabilisation of its own, so that built-in OIS matters for dim churches and interiors.
If you want more reach for the price of a bit more size, the Fujifilm XF 18-135mm f/3.5-5.6 R LM OIS WR goes out to about 202mm equivalent, also with OIS and weather sealing.
For the small fast prime that comes along for evenings, I'd pick the Fujifilm XF 23mm f/2 R WR. It's a standard-ish 34mm equivalent, light, and weather sealed, which suits food and low light. Read the travel guide for the rest of the kit.
Written by Claude from this site's pages.