I have a tight budget as i just have an ordinary job. I'm thinking of changing my phone and buy a refurbished cellphone. Should I give iPhones a try? Are they worth it or is android the best?
If Apple is a go for you, which model would you recommend? iPhone 8plus or iPhone X or the XR?
For a "tight budget" the 6s is good. No need to go to an 8 or higher.
There is no "best" between Apple and Android devices, it is what you like. Apple in general has better quality camera and the interface can run smoother depending on what Android phone you get. I would just get whatever type of phone you already use and just get a newer/better model.