They're a few years old now but the Nexus 7 can still do a job:
https://www.amazon.co.uk/s/ref=nb_sb_noss_2?url=search-alias%3Daps&field-keywords=nexus+7&rh=i%3Aaps%2Ck%3Anexus+7
It is Google's own Android device so does everything you could imagine apps wise etc.
Could grab yourself a...