Just those you can read about or watch on YouTube. Watch those videos of a good positive trainer who is upbeat and patient with lots of views and read simple obedience training lessons online. Working with your dog at home and outside on the leash will help the dog learn to automatically do what you say without thinking about it because the payoff - the reward of your happy smile, praise and a food treat - will be so good and positive that there won't be any reason not to.
Here's a video I watched the other day that has some good training tips but it's not basic obedience training. Haven't watched her other videos and I'm not a huge clicker fan as Tibbe doesn't like them but just watch training videos along these lines that use praise and treats to reinforce the behavior you want: