Hello there !

Hope you are doing fine.

Actually there are many good teachers on YouTube for NEET subjects. If we talk about chemistry, no offence but you can check videos of the followings :

1) Arvind Arora

2)Anirudh Walia

3) Sachin Rana

4) Vineet Khatri

I recommend these teachers as they are my personal favourites.

I advice you not to rely on these youtube channels, follow any support books as well.

Hope it helps..

All the best friend!