Looking for new phone recommendation

Currently using Oneplus X and keep crashing when playing clash royale(auto restart). Force to use my tablet to play. Planning to switch to a new phone.

1. Brand: Any
2. Budget: 1.5k-2k( maximum 2.3k if justifiable)
3. Specs: Prefer long battery lasting and Specs that can play clash royale without issue. Don't really care about photo quality and others.
4. What you need in the phone: I mostly whatsapp, calls, and surfing the internet. Just wanna make sure i dont get bored when i have nothing to do in the office.