One that is made with an indica strain and depending on your tolerence id say any where from 10-80 mg is enough to help you sleep
Pcnpatsy
For insomnia, I highly recommend. https://sensiproducts.com/product/sensi-chew-insomnia-with-melatonin/ Each serving has 10mg of THC and 4mg of melatonin, so be careful if you do not have a tolerance to THC.
I highly recommend the 1:1 spray from Care By Design – https://www.cbd.org/products/cbd-sublingual-spray – the 1:1 spray.
If an inhalation method is preferred, I recommend
https://dosist.com/formulas/ – the "Sleep" formula
drkim