Small teams skript I've been making (it has some TAB commands, but just delete those and it should be entirely independent, other than, of course, skript!)

/team create <team name> (creates a team)
/team disband (automatically deleted your team)
/team invite <player> (sends an invite message to the recipient)
/team info [team] (shows your team's info)
/team join <team> (requires a valid invite)
/team leave (leaves your current team)
/team chat (a team-only chat)

Join the Discord if there's any errors, if you need help, or have a suggestion:
https://discord.gg/Wd2X3scCUp