I think a few of us posted in this thread what salves/etc we planned to use, but that might be on another thread, too. This is my plan as of now and what I've stocked up for:
First spritz belly with rose geranium hydrosol to help everything soak in. Then put on a blend of essential oils-- helichrysum, rose geranium, clary sage, frankincense, carrot seed and lavender. Then I'll apply the shea belly butter concoction I've made and used throughout pregnancy. I posted a recipe for it somewhere on here-- can find if you want. For the last batch I steeped calendula flowers in apricot kernel oil and whipped that up with shea and kokum butters and some other oils. If I feel like I need more moisture, I plan to use rosehip seed and borage oil as those are both really good for regenerating skin. If you're going to invest in one essential oil, I highly recommend helichrysum. It's just the best for stretch marks. It's pricey but worth it! If my belly isn't too sensitive, I'll also be exfoliating with a homemade sugar scrub (super simple-- just add whatever oils you have lying around, even if it's just olive oil to sugar, I also like to add jasmine tea leaves).