What is the best alternate method to Martingale in roulette?

There are several alternative betting systems that can be used in roulette, which can be less risky and more sustainable than the Martingale system. Here are a few examples:

1. Reverse Martingale System: Also known as the Paroli system, this betting system is the opposite of the Martingale system, as it involves increasing your bet after a win instead of a loss. The idea is to capitalize on winning streaks while limiting losses during losing streaks.
2. D'Alembert System: This betting system involves increasing your bet by one unit after a loss, and decreasing it by one unit after a win. The idea is to balance losses and wins to limit the overall risk.
3. Fibonacci System: This betting system is based on the Fibonacci sequence, where each number in the sequence is the sum of the previous two numbers. To use this system, you start by betting one unit, and then increase your bet to the next number in the sequence after a loss. If you win, you move back two numbers in the sequence.

It's important to remember that no betting system can guarantee a win in roulette, and the outcome of each spin is determined by the laws of probability and physics. The best way to approach roulette is to gamble responsibly and within your means, and to have a solid understanding of the game and its rules.