read this
https://yabb.jriver.com/interact/index.php?topic=92473.0here's one for Google Images using Album Artist and Album, modified from 6233638 post in this thread
<Link version="1,2">
<Item Name="Name">Cover Art</Item>
<Item Name="Action">1</Item>
<Item Name="Base URL">https://www.google.com</Item>
<Item Name="Search URL">https:////www.google.com//search?as_st=y&tbm=isch&as_q=Hexify([Album Artist (auto)] [Album])&safe=images&tbs=isz:lt,islt:xga,iar:s,imgo:1&biw=1097&bih=567</Item>
<Item Name="Filter">[Media Type]=[Audio],[Image],[Video]</Item>
</Link>
if you want to paste it in using the paste from clipboard button, copy the code above.
Basically, you need to go to a site and do a search then copy the URL adding // to every double slash as the double slash is used as an escape character. so https://www.google.com needs to be https:////www.google.com. The you need to substitute a field or two, (like [Artist] in brackets) for what you searched for. Each site is different, some use hexidecimal searches some don't ... so some compter literacy is required.
You might need to ask using a specific search request or modify an existing one that is shared here. Google searching is more complicated than most IMO