Oracle Linux 8.x - Performance Test (Stress / Load / IO / Network Usage / Memory Usage)

I want to do performance test on Oracle Linux 8 KVM guest server (It will be used as Application server (WLS 14c) and/or Oracle DB server). What are the best tools I can provide this with? I saw an RPM called stress. Does it help in completing necessary tests for network, CPU, memory and I/O? Or how can I do them all individually in the most consistent way? What are the most successful RPMs or system commands? (dd for example I/O) Note: the servers are not used instantly, I want to create a virtual (contrived) load. Thanks in advance and best regards.