Hi i am also in class 10 student of vedantu in A1 batch as my opinion ,

offline coaching  good if you get topper batch , as i heard that lower batches are not well guide as compare to topper batcher

and i like fitjee because , they used to teach a advance level , if you are good in maths like you are able to solve books like pearson and any NTSE books so , try to gave admission  tests of all these coaching and check where you stand , if you are good in pcm then you must get some scholarship also . yes you can also gave the test of online coaching's

All the best buddy

From my experience I can tell you, as far as JEE Main and Advanced is concerned, Allen Career Institute has one of the best and a strategical coaching system besides supplying excellent study material and a very effective test series. However, besides this you must also take Resonance DPP and Rank Booster for better preparation. I believe they are nowadays available on Amazon or Flipkart.