Returning Player

I have been in and out of the game since the start, my main is a 80 Necro with mostly tier 3 gear and litte tier 3.5/4 .
I do the weekly raid, what else should I do to improve my gear ?
I am not an hardcore player but I would like to equip myself better.

Many thanks

Most will probably suggest joining a guild that does higher tier raids. There are a decent number that clear t4 and higher still but your choice of guild gets a bit limited if you’re in US primetime hours. You can also join khitai 6mans if you see them.