OP said "50 quid" so that would be UK. As to what would be suitable and usable in the UK, not sure, I'm a bit out of touch with UK now for that.
I would say though avoid anything that has illegal pirated content, usually cheapo Kodi boxes bought online from China. You may find it won't work, because ISPs like BT, Sky, Virgin and Talk Talk block pirate sites and streams there.