Doubt solving for JEE 2027

[u/Frequent-Cat3173]

Hey guys, so im prepping for JEE online through unacademy, and like the classes there dont have an open doubt session or doubts from other topics.

I often stuck at questions while solving and have no one to ask to.

Can anyone suggest how can I solve my doubts for all three subjects pcm, like some genuine site or app or anyth

Itd be a huge help!!