I give you some points how to buy a suitable mobile for you .1 company-what company is right for. 2 budget - make your mind set and fix budget like ( 5k, 7k, 10k etc.) 3 set mind what you want in phone like good camera, battery backup, sound etc.
If you want very good camera than buy oppo’s phone . if you want good sound than buy sony’s phone and many types of company are there.