How to make file in “/etc/init.d” start after all other systemd scripts have run in RHEL9.6?

How can I get this service to start after every other service has started for run level 3 on RHEL9?

[unit]
description=EMC Networker
After=syslog.target network.target network-online.target
[service]
type=forking
user=root
execstart=/opt/nsr/admin/networker.sh start
execstop=/opt/nsr/admin/networker.sh stop
Tasksmax=infinity
WantedBy=multi-user.target graphical.target