The iPhone 8 is a good option for a budget phone. It has an acceptable design by contemporary standards and is significantly cheaper than the next model up (the iPhone X). If you want the latest quality tech to create content or play with photography, this isn’t the model for you. But if you’re looking for a less expensive second hand phone, with relatively modern features, the iPhone 8 is great.
Be mindful of the fact that this model features a glass back, so if you’re going to need something more durable for working, you’ll want a decent case. Note that this model does not have a traditional headphone jack. Rather it features a lightning port.