Vultr is one of the best cloud hosting on the market. They have multiple data center locations for the client to choose and they have a great offer for people who want to try their service with $100 free credit can be used in 30 days. You also can follow their Twitter account, tweet about them on your Twitter account, and get $3 more. The total credit you can have is $103.
To get started, visit the promotion page here then open an account.
You need a valid credit card to verify the account or fund at least $5 from your Paypal to verify the account.
If you do not see the $100 credit after register and verify the account, all you need is to create a ticket to ask them manually add the credit. They will check your account and add it.