When it comes to crystals that can help with insecurities, there are several options to consider. Some of the best crystals for boosting confidence and self-esteem include:

1. Citrine: This yellow crystal is often associated with abundance, success, and positivity. It's said to help boost confidence and self-esteem while also attracting abundance and good fortune.

2. Carnelian: This orange crystal is known for its ability to enhance creativity, courage, and motivation. It's also said to help boost confidence and self-esteem while releasing negative energy.

3. Tiger's Eye: This golden-brown crystal is known for its grounding and protective properties, as well as its ability to boost confidence and self-esteem. It's said to help you see your own strengths and weaknesses more clearly, allowing you to make positive changes in your life.

4. Rose Quartz: This gentle pink crystal is often associated with love and compassion, and it's said to help heal emotional wounds and promote self-love and acceptance. It can help boost confidence by promoting a sense of inner peace and security.

5. Black Tourmaline: While not traditionally associated with boosting confidence, black tourmaline is an excellent crystal for grounding and protection. It can help shield you from negative energy and promote a sense of calm and security, which can help you feel more confident and self-assured.