Luckily I'm not negotiating, people much smarter than me are. But I guess it'd have to start with Israel stopping all military activities, and all further settlement, and coming up with a way of untangling all the different zones of occupation so that each people can have their separate area. Really hard to envision how this could happen, but I think it's the only way... and it's technically possible if logistically very difficult.
Also envision somehow getting families to sit down and talk to try to reset some of the hatred on both sides, perhaps like the Gacaca in Rwanda after the genocide there.
Then maybe after a few decades more reintegration could happen.
Think Netanyahu and the crazy right wingers out there need to go too, but he's not exactly popular in Israel and I hope that will happen soon anyway.
Still don't see why Israel should stop first though, given that Hamas started this with the awful atrocities of 7 Oct. So Hamas go first- surrender, give up hostages, and commit to allowing Isreal to exist without constant violence.