Is it possible to get it online cuz i was looking and didn't really see were to get one or do i got to look for the rhode island town hall to get it?

https://www.countmyfish.noaa.gov/
federal permit is good for the upcoming year, it's free, and for the time being accepted in MA also

If you are looking for a freshwater license, the Town hall in Burrillville RI is the closest one to you.