LinkedIn has been the most effective for me, personally. I seem to have less-scammy recruiters reach out to me on LinkedIn than on other platforms. I’m in my current role that I didn’t even apply for, but got offered from a direct outreach by a recruiter, and it made the process very seamless.

I’ve used Indeed in the past, but seem to encounter a lot more scammers from India there. That could just be related to my field, though. I get more phishing attempts from Indeed than job offers.

I feel like most job aggregators pull/crawl the same listings? That said, I’ve had success with Indeed in recent transitions.

Are you in a certain field/industry? Going directly to the websites of companies you know is a good place to start.