Thanks for taking the time out of your day to post here in the Community, I'm happy to help. While we can't tell you who your liability agency is because you'll need to choose one that fits you and your business the best, you can refer to this article that highlights Group term life insurance payroll item setup. If you need further assistance to determine which agency would be best for you, you can reach out to a bookkeeper for advice. If you're looking for a bookkeeper, you can check out this link to help narrow down your choice.
If there's anything else I can help with, feel free to post here anytime. Thanks for stopping by and have a nice afternoon.