When the question is structural—what connects to what—a schematic is often faster to inspect than a source-file search. RouteRTL can generate the view from the RTL top module.
Generate it
rr schematic <top>
The command writes an SVG schematic. Choose a different visual skin when the default is not useful for the review:
rr schematic <top> --skin classic
Use --view when you want the generated SVG opened after the command finishes.
Result
The schematic is a structural view, not a proof of protocol behavior or
timing. Use it to find unexpected hierarchy or connectivity, then use
rr sim, rr rules check, and the synthesis reports for behavioral and
implementation evidence.