The amount of information on gardening online is almost limitless and can be almost overwhelming. Two good sources are:

Charles Dowding No Dig

Charles Dowding has been developing and teaching “no dig” gardening for over 40 years. It is heavily reliant on compost. So what you save in digging time, you may lose in compost making/hauling. But it is great for the soil and allows you to grow healthy, nutritious food.

More info on his website and his YouTube channel.

Huw Richards

Also worth considering is the advice from Huw Richards, a man who finally dispels the myth that you only fully understand growing when you reach your 60s.

His YouTube channel