It might help to read through GiveWell’s research. There’s a lot, but consider reading some background, and pick one charity/​intervention to do a deep dive into.
For background:
https://​​www.givewell.org/​​giving101/​​quickstart
https://​​www.givewell.org/​​how-we-work
https://​​www.givewell.org/​​how-we-work/​​criteria
https://​​www.givewell.org/​​how-we-work/​​our-criteria/​​cost-effectiveness
For research on specific charities and interventions:
https://​​www.givewell.org/​​research/​​intervention-reports
https://​​www.givewell.org/​​charities/​​top-charities
https://​​www.givewell.org/​​how-we-work/​​our-criteria/​​cost-effectiveness/​​cost-effectiveness-models
It might help to read through GiveWell’s research. There’s a lot, but consider reading some background, and pick one charity/​intervention to do a deep dive into.
For background:
https://​​www.givewell.org/​​giving101/​​quickstart
https://​​www.givewell.org/​​how-we-work
https://​​www.givewell.org/​​how-we-work/​​criteria
https://​​www.givewell.org/​​how-we-work/​​our-criteria/​​cost-effectiveness
For research on specific charities and interventions:
https://​​www.givewell.org/​​research/​​intervention-reports
https://​​www.givewell.org/​​charities/​​top-charities
https://​​www.givewell.org/​​how-we-work/​​our-criteria/​​cost-effectiveness/​​cost-effectiveness-models