Ways to induce labor?

What are some ways to induce labor? I’m 37 weeks 2 days my OB gave me the okay to do so to try to avoid induction at 39 weeks. I’ve tried red raspberry leaf tea, pelvic tilts, hip circles, and figure 8s on yoga ball. I also tried a 10 minute stretching video I found on YouTube to try inducing yesterday. This morning I did lose a little bit of my mucus plug.