When running hot what else could it be if you've already changed the thermostat, water pump, and fan relay

When does the "running hot" condition occur? Sitting still and slow speed driving? Higher speed driving? All the time? Have you ensured that any and all air pockets are purged from the cooling system following all your repairs? Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops