What coverage is needed for Freight Forwarders?

In your experience. What is coverage needed for freight agents/ freight forwarders aka people who solely work in an office and connect shipments with truckers etc. For a simpler business I know it would usually be a mix of General Liability, workers comp, and maybe even E&O/cyber for more cautious clients.

However in my research with this business type I’ve come across terms such as ‘contingent GL’ ‘contingent cargo’, ‘contingent auto’ etc. talking to some of the brokers I work with I was even still getting mixed messages and diff answers from diff people. Could someone with expertise in this arena clarify for me what you usually recommend, and if each one of those ‘contingent’ policies is recommended? Also wanting to confirm if you do recommend professional liability as well for this business type. Thank you