If your budget is 35 to 40 thousand.
You want a good camera and processor, then a good display, and the phone should be strong so that there is no fear of damage if it falls or weighs heavily in your pocket, then please do not waste money on a new phone. This is a sincere and brotherly advice.
Because in new mobile phones of this range, only the battery will be good or the Android version will be upgraded, the rest of the above things will be of light quality.
In the same range, you will find some second-hand best options that will be great in every way. Then most of them are Under-Display Fingerprint, meaning their fingerprint is on the screen.
Below I am telling you some models. If you get them in good condition or a reliable dealer gives you a checking warranty (or a guarantee of not being opened/repaired), then do not hesitate to buy them.
Realme GT Master Edition
Oppo Reno 6
Oppo F19 Pro
LG V60 ThinQ
LG Velvet 5G
Oppo A95
Vivo V23e
Vivo V21
Vivo V21e
Vivo V20
Oppo A96
Samsung Galaxy A32
Samsung Galaxy A71
Tecno Camon 20
Xiaomi Redmi Note 10
Oppo F17 Pro
Realme 9
Vivo Y53s
Vivo Y51s
Oppo F19
Realme 9i
Oppo Reno 3
Oppo F15