@cbrhh If Ingesting Limits are an Issue i mainly focus on these otherwise the more the better:
4688 (Command line auditing):
4625 (Failed logons):
4103 4104 PowerShell auditing (PowerShell 5.0): PowerShell event 4103 and script block logging (4104)
7045/4697 A service was installed in the system
7045, 10000, 10001, 10100, 20001, 20002, 20003, 24576, 24577, 24579 Insert USB
4624 Account Logon
4720 A user account was created
4722 A user account was enabled
2003 Disable firewall
8003 (EXE/MSI) was allowed to run but would have been prevented from running if the AppLocker policy were enforced
8004 (EXE/MSI) was prevented from running.
1116 Windows Defender has detected malware or other potentially unwanted software
1117 Windows Defender has taken action to protect this machine from malware or other potentially unwanted software
1102 Audit Log Cleared
4672 Account with admin level privileges logs on
4698 Schedule new/update tasks