I love clicker training! (My caique, rabbit, dog, and cat are all clicker trained) If your bird doesn't like the clicker sound or it's difficult to hold treats and the clicker while training you can also just replace the click sound with the word "good." I did this because it frees up a hand. Look up Barbara Heidenriech if you want some training tips. She's amazing. I always recommend this to people, but look up target training and try that if you're looking for a good place to start. It's really helpful with training other tricks as well as moving your bird around. Also, if you're trying to get your bird to not be afraid of your hand, you could start by getting your bird to go on your shoulder or upper arm, and then work your way to getting him onto your hand. I've heard this method works really well for birds with a fear of hands.
Also, welcome to the forum!