SAAS model database

Question

Hi,

 

we have developed one software using ASP.NET and Oracle. now we want to deploy it to cloud as SAAS modal so that we can sell it to many customers. Can anyone help in knowing the following

1. Shall we continue oracle DB or migrate to MySQL or Sql Server as our bedget is less and cost of oracle license is pretty expensive

2. Can you recommend any low price (but with good service/ support) Domain + Database service provider ?