Recommended · for some experience
DIY LiPo Charge/Protect/5V Boost Circuit
Why people recommend it
GreatScott! builds a combined LiPo charger, protection and boost circuit, and people often use the published design as a base for their own battery-powered boards.
Watch for: check the datasheet, as parts may have changed
In their words
And there are people who wants to create it themselves such as GreatScott!
Unknown123 on electronics.stackexchange.com, Feb 2019. CC BY-SA.