The sad truth is: There is no magic trick to longer lasting perfume formulations.
Most perfumers discover "optimal" blends that have a good balance between longevity and silage, only after a lot of experiments which lead to one particular composition that stands out.
However there are aroma chemicals that can bridge between top and base notes, that can act on longevity and stimulate radiation. But that's a no go area for you, i read.
Best advice is to focus on base notes with fixative capacities for longer lasting formulations.
Sorry, no holy grail.
Some all natural perfumers however consider the use of Glucam P20 as a possibility.
All the best, happy perfuming.