1. Commoditized website development where any tom dick and harry can setup a quick website on wix/squarespace etc because frankly, they don't need more than that. It is really hard to compete against tools like these because they sell $2/Year websites (or something low enough)
2. There are businesses (small-mid sized) that have built something way back (read:late 90s-early 2000s) who are struggling with their in-house system and looking for a better solution. But they are too scared to think about changing because they don't know who to talk to and what it will cost. You need to find those businesses.
Source: My company finds the #2 and it is a gold mine.