Congrats on your upcoming arrival! 🎉👶🏻 I was induced on my first (9lbs 8oz) and had an instrumental delivery. I made the informed decision to decline induction for my second (10lbs 6 oz), as I felt it was the induction that led to the need for assistance, rather than the size of my baby.
I found the bigger baby easier to birth actually! Long labour, but once the pushing stage started he flew out. I did decline pain relief besides gas and air, and any other interventions, as I knew intervention risks were higher with a bigger baby.
I think regardless of induction or spontaneous birth, the second baby is usually easier irregardless of size.
I did find it helpful to inform my decision to ask for the risks of waiting vs going forward, and my hospital's specific rate of inductions leading to emergency c-sections. I also asked what centile his head diameter was on (ended up being 99th too!) as a lot of the time long legs up the weight calculation the sonographers use. I checked the centile of his head, abdomen and legs - all large but his head was the largest. I was confident if I could get the head out, the rest would follow.
Plus I asked for my bishop score. I think the reasoning is the higher the score, the more likely induction will take as your body is readier.
I also felt confident waiting because my mum had giant babies just fine, and quite honestly I didn't think my second would be as large as he was. My bump was smaller second time around so big surprise for me!
Best of luck with your decision, either way it's an exciting time!