You can apply for a Tier 5 (Youth Mobility Scheme) visa if you:
want to live and work in the UK for up to 2 years;
are aged 18 to 30;
have £1,890 in savings;
have certain types of British Nationality or are from certain countries;
and meet the other eligibility requirements
You need to be sponsored if you’re from Hong Kong, the Republic of Korea or Taiwan.