There are many ways to reduce tax liability legally but it does take a little effort, time and guidance to do it properly. A good account will help you, but to be fair it isn't worth it until your income and/or net worth cross specific thresholds. Just like using family limited partnerships doesn't really benefit you until you have enough assets to justify doing it etc, otherwise the cost to manage it is just not worth the tradeoff.
One last point, entrepreneurs who build businesses outside of VC world (most) figure out how to manage taxes and debt really well if they become successful. Even more so if they deal in hard assets like real-estate, equipment, manufacturing etc. Most tech companies do not have the type of hard assets which give so many of the tax incentives/benefits, Amazon would be an example of an exception there. Amazon pays so little in taxes because of their hard asset investments, much like any large real-estate developer given that real-estate has some of the greatest benefits, and if that real-estate creates jobs even more benefits.
And hire a good accountant.
Buy real estate investment properties, preferably with the land being a very small proportion of the value. Then the 27.5 year non-cash depreciation expense on the buildings will negate a good chunk of your net income from the properties.
Depreciation will lower your cost basis on the property, so you will pay taxes eventually...