[tejasm]

In the past, I've used two agencies and have wonderful experience with both of them.

1. Ryan Roberts of Roberts Foster - http://robertsfoster.com/. He's a wonderful guy with personalized response to every question you might have. He's knowledgable and can guide you what state and what entity depending upon your situation.

2. Harvard Business Services - https://www.delawareinc.com/ - Reliable and cheap. You can incorporate in as less as $250 and get started in less than a week.

I've personally used both the above entities and recommend them.

All the best!

P.S. I'm not affiliated with any of them.