It depends where you want to work. You need to go where the companies you'd like to work for look for staff. If you're looking for a role somewhere big and well known then Google, Indeed, etc are a good bet. If you want something more start-up oriented then sites like workatastartup are good. If you want something a bit more niche and unusual then using your LinkedIn network works well. The last few times I've looked…
This is my current practice. If I get a bite, it's one I'm excited for since it's a company I already know I'm interested in joining.
On the flipside, I do this rarely and it seems like exploring jobs to the extent of seeing what the job market thinks I'm qualified for is a volume game. Based on what's been posted here thus far, sounds like balancing between one of the known recruiting sites and still cherry-picking careers pages is the way to go.
Thanks!