DuckDuckGo

The default homepage is https://duckduckgo.com/?kao=-1&kak=-1. This works well with both JavaScript enabled or disabled.

Setting JavaScript to be enabled provides more advanced image search functionality. To do so, first change the default search string to be DuckDuckGo - JavaScript enabled.

Then use domain settings to enable JavaScript for duckduckgo.com.

Image search now provides thumbnails which expand when tapped.