A small business can shop off-exchange through a broker, buy a small-group plan...

https://www.tradersdna.com/the-best-ways-to-find-small-business-health-insurance-outside-the-marketplace-exchange/

A small business can shop off-exchange through a broker, buy a small-group plan directly from a carrier, or consider an HRA for individual coverage. Before comparing costs, check that employees’ doctors and nearby hospitals are in-network.