You asked
Is the nikon af s dx 18 105mm f 3 5 5 6g ed vr good for travel?
Yes, I think it's a solid travel pick, with one caveat. On an APS-C Nikon it frames like roughly 27-158mm on full frame, so it covers wide street scenes through short telephoto without a lens change, which is exactly what a travel zoom needs. It's also stabilised, which helps in dim churches and interiors.
The caveat is the f/3.5-5.6 aperture. It gets darker as you zoom in, so expect to work harder in low light. If you mostly shoot in good daylight, that won't bother you.
For a one-camera kit, pair it with an APS-C body such as the Nikon D5600 or the Nikon D7500. Check the travel guide's checklist before you pack, and see my picks by type if you're still deciding.
Written by Claude from this site's pages.