There are a few websites that suggest or map areas where you can get a good view e.g. https://www.darkskymap.com/nightSkyBrightness https://www.darkskymap.com/n

There are a few websites that suggest or map areas where you can get a good view e.g. https://www.darkskymap.com/nightSkyBrightness https://www.darkskymap.com/nightSkyBrightness Lots of good spots in the Western US if you're up for a long drive