Hello thisisme and welcome to the Dubai visa forums
You probably won't be able to sponsor her as a friend since I think there is a minimum salary requirement of AED 10,000 per month. But there are some other possibilities.
1. Tourist Visa for Dubai
- valid 30 days, renewable once, needs a hotel / airline / travel agent sponsor.
2. Visit visa on arrival for Dubai
- valid 30 days, renewable once or more, she needs to be from one of the countries that can get a free visa on arrival.
3. Sponsored visit visa
- valid 30 days or 90 days, not renewable, needs to be sponsored by a relative, or sometimes a company can sponsor someone.
4. Transit mission visa
- valid 14 days (or maybe 16 days), company needs to apply for one, only issued to people with professional level qualifications or business related visitors.