Ticking objects
dumpticks console command will dump a list of all ticking objects. dumpticks grouped groups by type. Note that dumpticks may list things that could tick, but have tick disabled currently. This is indicated by disabled in the logged line.
“Blueprint Time”
For C++ only code, there can be a “Blueprint Time” indication in Unreal Insights. If it’s pure C++ with no blueprint logic anywhere, this is likely to be overhead from BlueprintNativeEvent.
See Detecting Blueprint implementations for functions