These are the current schemes or programs you can consider to immigrate to the UK. Bold ones are the most popular ones and clicking on them will open their official information page.

Au Pairs
Businessmen
Business Visitors
Domestic Workers
Entertainers
Film Crew on Location
Fresh Talent: Working in Scotland scheme
Gap year entrants
Highly Skilled Migrant Programme
Innovator
Investor
Japan Youth Exchange
Ministers of Religion
Overseas Government Employees
Postgraduate Doctors/Dentists
Representatives of Overseas Newspapers
Science and Engineering Graduate Students
Sole Representatives
Sportspeople
Voluntary Workers
Worker Registration Scheme (For new EU citizens)
Working Holidaymaker (USA, Canadian, Australian citizens)