@Awzaw's forked FactionsPro Factions-pp FactionsPro fork by @iChaoticSoldier In the future, you can try searching on poggit.pmmp.io for plugins.
In Awzaw's Modified FactionsPro plugin has the /f top command with a little bit advanced command than old FactionsPro by Tethered_ it almost like the Bukkit Factions Plugin but somehow looks like the /f chat is disabled on that plugin recommend you to decompile it and enable the faction chat if you want to use it but its a good plugin you know
You can ask @Awzaw to enable the /f chat if you want to use it also when you install the FactionsPro from awzaw you better use AntiSpamPro because some /f command may spamm your chat it doubles or spam the message when you do that like /f about