It should be remembered that YouTube is a massively popular search engine in its own right. Even a couple of years ago it was getting billions of searches a month.
So you can get ideas for what kind of videos to make much as you would from Google. Just use the drop down suggestion box, for example.
You can also use the free keyword tool, confident in the knowledge that keywords that are often searched in Google itself will also be popular in YouTube. (There is a similar tool for the site itself. But the data isn't that comprehensive.)
For example, I knew that the term "Perth Arena" got a reasonable number of searches on Google. So I made a quick video of the structure and uploaded that a few days ago, making sure to use the term in the title. It's on the first page of results for those keywords, and it's had a few views already.
Now I know from my blog stats that it's easy to rank for local terms. And that brings in really good local traffic too. So I'm going to keep generating video content to get those clicks onto my blog about Perth.
I recommend that others wanting local traffic do the same. If you can find a local angle, then make a video about it. But don't just make ads. Make content that people want to share.
For example, if you're builder in Perth, you could make a video about how to build a house for the city's particular conditions. You could then get your local keyword in there. And you'd still be creating interesting and useful content.
Or say you have a cafe in Newtown. You could just wander down the street filming the buildings and crowds giving an idea of the whole atmosphere of the place. And you should put the keywords "Newtown" and "cafes" in your video title. There'd be a lot of people searching for them on Youtube. Even if your video didn't get on page one straightaway, as long as it was shareable it would crawl up the rankings and you'd be sure to get some targeted traffic to the site you have included in the description.