[opensuse] What to use for determining a "route"

Hello to everyone reading this. Provided i wish to determine my route(s) on my network. which of these packages is NOT deprecated: iproute, iproute2, netstat (is deprecated). The first two I do not know. Have they all been superseded by "ss"? I am a bit lost on what is still maintained and what not. Formerly I used e.g. arp but I have read it is deprecated. Netstat too. Thanks in advance for updating me on what to use and..why the older package were "deprecated". Especially the latter would help my understanding.