your question is a bit incomplette . if you want to find the best physics in up then first you have to tell at which level you want to study and in what language .even different teachers have different methods to explain so categorisation of a best teacher is very tough . if you want to search good teacher for entrance exams then ask any student who is studying in a coaching institute .

further you can check out youtube videos for physics tutorials . i will suggest you to watch pradeep ksheterapal's videos for 11th n 12th physics