There are many choices, such as Lingbi style, new trends, Webb and so on. There are also oral classes in New Oriental, but I don't know much about them. The new dynamic is similar to Weibo, but it's a little cheaper than Linguaphone, but if you want to take oral class, you must pass the computer test first. Take Linguaphone as an example. The basic level (that is, basic level 0) is taught by China, and the rest is taught by foreign teachers, all in small classes of 4-8 people.

It depends on your choice.