I recently listened to the audiobook of How to Avoid a Climate Disaster by Bill Gates. It was a fine tour of the landscape of solutions. My main takeaway is that we're going to need to do a wide variety of things in a wide variety of sectors. He gets into stuff like concrete, which is very important in growth but also big on emissions.

With respect to reforestation: Gates says it would help, but possibly not as much as you'd think and he's a bigger proponent of stopping the deforestation.

Yishan Wong thinks that growing forests (as opposed to just planting trees) is an important tool for carbon sequestration: https://www.terraformation.com/about