Best spoken english course in Dhaka

Hi, I’m a 21-year-old university student at DU (science faculty), currently staying in a residential hall. I've improved my listening english skill by watching movies and series. But when it comes to speaking, i can't even give my intro properly, i can't even dictate a prompt properly while talking to AI.

Also my uncle who is quite serious about my study and overall growth and bears my educational cost, is telling me to join a spoken english course for a long time.

Now i am looking for a reputed spoken english course in Dhaka that will help me to be better in speaking fluently, improve my presentation skill.

I am currently thinking about Mentor's spoken english course, how is it?