There's really nothing you can do to avoid a medically necessary induction other than trying to keep your pregnancy as low risk as possible, which means things like eating properly, exercising, taking care of yourself, etc. You should avoid unnecessary induction anyway (things like being induced because baby is "too big", or you're past your EDD, etc.) and that's well within your control, just don't do it :) You can't make your body go into labor, there's a reason why it starts when it does and it happens when the time is right and baby is ready to come out. So, if you're thinking you're facing an induction if you "run out of time" or something like that then the most important thing is to adjust your perspective and accept that normal human gestation can go to 42 weeks.
Now, in order to give myself the best chance at a good labor experience I'm doing things like drinking red raspberry leaf tea, doing prenatal exercises which help with baby's positioning and my pelvis, getting adjusted by a chiropractor weekly to help with baby's positioning and my overall health, I took a natural birthing class as I'm planning to decline any unnecessary interventions, I switched practices to a smaller practice that subscribes more to the traditional midwifery model, etc.
FWIW, I wasn't actually induced last time, but I did submit to a bunch of unnecessary interventions which ended with me getting a C/S for failure to progress.