Some of the best English-speaking courses that are ideal for general English learners to improve speaking skills include:

1. Duolingo: Duolingo offers a free online platform that covers various aspects of language learning, including speaking, listening, reading, and writing.

2. Rosetta Stone: Known for its immersive teaching method, Rosetta Stone provides interactive language lessons that emphasize speaking and pronunciation practice.

3. EF English Live: EF offers online English courses with live teachers, allowing learners to practice speaking skills in real-time with instructors.

4. British Council: The British Council offers a wide range of online and in-person English courses designed to improve speaking proficiency through interactive activities and exercises.

5. Berlitz: Berlitz language courses are renowned for their conversation-based approach, focusing on practical speaking skills for real-life situations.

6. Babbel: Babbel provides structured lessons that cover various topics and vocabulary, helping learners improve their speaking skills through interactive exercises.

7. FluentU: FluentU utilizes authentic English videos, such as movie clips and music videos, to help learners practice listening and speaking in a natural context.

These courses offer a comprehensive approach to improving speaking skills in English, catering to learners of different levels and learning preferences.