BUYING A SMARTPHONE

Hello guys I'm back. Last time I was here you advised me well on which tv to buy. And I ended up with a very nice 50 inch TCL tv and it's amazing!

Now I want the same advise for a smartphone. I've been using Tecno pop 7 for the last two years. And my word is this phone shitty! It overheats, lags, system failure like everyday. And the battery is drained within three hours.

My budget is 25k. Can I get a recommendation? the phone brands I swore I'd never buy from are the following Tecno,Infinix and Itel. Am going to buy this phone tomorrow please help!