I live in PA. Should I consider forming aLLC else where? Is there any benefits?
Depends on the state. Some states are known to be more business friendly than others. Better protections, etc. You need to your research to see which states are better for the industry you're in.
There are tax benefits that vary across the states. I recommend working with a very good vetted CPA. Find the best one that you can afford because, in the end, the CPA can save you thousands in taxes by setting the foundation for the corporation correctly. I have had a few corporations choose Delaware for a verity of different reasons, not just tax reasons. https://www.legalzoom.com/articles/incorporating-in-delaware-advantages-and-disadvantages