For intermediate and Advance Thai learner.I found this youtube channel ” รู้รักภาษาไทย” is useful for you.
The VDO explain about Thai word and how to use it in the correct way.
The main character are the cats names เก้าแต้ม [gâo dtâem] and สีสวาด[sĕe sà-wàad]
There are 250 episode to watch .