Noooo please don't use a sunbed, really bad for your skin! UV light is ageing and increases the risk of skin cancer. Try fake tan - if you have some cash to splash go to a salon for a spray tan, and ask them about it first - you want something designed for pale skin so you look a nice colour, not orange, and not 'olive'. If you're used to using fake tan have a go at home yourself, if not, think about one of the 'hint of tan' daily moisturisers or aftersuns like Dove summer glow (if that's still available) - apply every day and you build up colour slowly, and it's difficult to make it 'streaky' (the big problem with fake tan if you aren't an expert).
I have fair skin, and all I get is freckles really if I try to tan naturally. I use a 'hint of fake tan' for a few days before a holiday, then wear sun block and use the hint of a fake tan as an after sun every day while I'm away, until I get to a reasonable colour. You can then use it to keep a bit of a tan for a while when you get back.