Assuming you dont want to move, you cant really do anything about your taxes if you live anywhere in the european union or places with similarly "well" developed tax law. You can only conceal it and thats tax evasion.
If you want to move, and depending on the figures you actually make, PT, switzerland, montenegro, a couple caribbean states, uruguay, hongkong among others are all worth looking into.
Of the banking hubs switzerland, singapore and panama, you would most likely want to choose the one that is furthest away from your home country.
The lawyers I talk to agree on nevis LLCs for business and holding assets and panama corps to hold the LLCs. But generalities wont help you much with that and since you need those lawyers to get them properly set up, you should just talk to them.