Unlike most people, I don't fall for the high-end smartphone trap. A dirt-cheap Samsung phone is all I need for now.
I am using refurbished iPhone X for almost a year and it's working just fine. So, if you want to sell your phone you should also buy a refurbished one. It works just fine and you can purchase it within your tight budget.
You won't b liking it a lot. There used to be a time when Sony Ericson were the best phones. But now, Samsung phones are the best. Although they are second in line to iPhones. But if we talk about Android only, then Samsung phones are beasts with serious features and power, especially the Note Series.
I use a samsung galaxy j4 because it has big screen and i use it wor reading writing etc i use it mainly for marketing business
I am using Raberrypie phone with Ubuntu OS and ordered the parts for this phone from eBay and assembled it myself. Its really hard to get battery of branded phones once it dies but not the problem with Rasberrypie mobile parts.