Greetings from the the U.S.
There’s a lot to consider in terms of a teacher training.
Imagine you asking about martial arts. Then saying you simply want 200 hours of training, the cost of the training, and the cost of living near the training center. The number of answers could go on for days, right?
I would encourage you to think deeply about what it is you WANT from a training.
Do you want to learn a comprehensive yoga?
Are you just looking to learn some poses (asana)?
Do you expect human anatomy to be included?
What style of yoga would you like to teach when you complete your training? More importantly consider this:
What effect do I wish to have on students who come to learn from me?
This bigger question will help you discern the hundreds of options for 200 hour trainings.
Then, and hopefully ONLY then, you can go to the Yoga Alliance web page and search out the type of yoga and begin your research there. The major US cities will all offer several options for training but a few of them might also be costly to live in - New York, San Francisco, Seattle (where I am), Boston…all pretty pricey.