The most common and widely recommended form of Ganesha for home worship is the one with the trunk turned to his left (your right when facing him). Known as Vamamukhi Ganesha, this form embodies Chandra Shakti (lunar energy), associated with calmness, peace, and gentleness. It symbolizes the Ida Nadi, or Moon channel, which governs emotions, creativity, and nurturing.
This version of Ganesha brings relaxation, prosperity, and harmony into the home. He is easier to please and doesn't require overly strict rituals. Even if small errors are made in prayer, they are generally forgiven, making this form perfect for daily household worship.
A particularly auspicious version of this idol is the one with the trunk curled toward a sweet (like a modak or laddoo), symbolizing abundance and satisfaction. Placing such an idol in your home is said to attract wealth, good fortune, and positive energy, while also helping to resolve Vastu-related issues.