Which travel agency is good for traveling in Europe?

Take CYTS for example-the reception is relatively best and the operation is the most standardized, but the price is a bit expensive. They never accept group work and do it by themselves.

Sino-Singapore Caesar Bamboo Garden-private wholesalers sometimes meet as tour leaders and tour guides-may affect the explanation of local attractions. Generally speaking, you don't have a local tour guide card, which may be more familiar than you.

Don't think about anything else. It's basically for the last three.