Just the essentials. This is all that is required of you, and it's easy to set up, so we recommend starting here.
Setting up network user reports in your server allows you to receive them there directly and enable automatic banning instead of copy-pasting from HQ each time.
Connecting to global chat allows your members to chat with members in other TCN servers, and if you connect the staff channels, your staff can also hang out with or reach out to other servers' staff.
Configuring the staff link allows you to automatically sync your server's staff with the TCN system, allowing them to receive access roles in the TCN Hub and gain permission to submit network user reports.
There are some other bots (Genshin Wizard, Daedalus) that you might be interested in using. Both are partnered with us, and you can get special benefits through our partnership terms.