I’ve got an old hp laptop which I bought second hand that I just use when going away etc… My only issue is the screen is not very good but for viewing photos and web browsing it’s good enough. I’ve had DT on it, it’s slow but would be fine if the screen was better.
You should be able to pick up something cheap as chips a lot better specs than what mine is which will be fine for what you need. My advice would be use a lightweight distro. I use Mabox on mine and it runs really well.