Truth be told, you have to keep plugging, persisting like it's a full time job. You have to be open to every strategy approach from applying to job postings, cold emailing, cold calling, walking in, reaching out to your network ie relatives, distant relatives, friends, friends of friends, people you run into every day ie gym or other social events. Also attend professional events, volunteering events etc.
I have heard of people who after being unemployed for a while accepted odd jobs, drove ubers and did anything that they could to earn on the side. But dont get into the trap of giving up professionally on yourself and sticking to the odd job forever.
You can try recruitment, employment agencies as well but be cognizant of the fact that they will only promote the best looking marketable candidate they come across as their commission depends on it.
Keep plugging away. It's the only way