I came back to FFXIV last month and had to gear up to progress the Main Story, so here's what I did:
The Leveling and Trials Duty Roulettes both give Lore Tomestones (and a few Scripture Tomestones), plus you can get more from any level 60 dungeons you have access to. If you go to Idyllshire and talk to
Hismena, you can exchange Lore for i230 gear (and Scripture for i260). The cheapest stuff (jewelry and waist) is 375 tokens each.
Also, you can do 3
Vanu Vanu Beast Tribe Quests in the Sea of Clouds for 15 Lore each (45 total) per day, and 3
Vath Beast Tribe Quests in the Dravanian Forelands for 5 Scripture each (15 total) per day. Plus when you max out your current reputation level with a tribe, you get a special quest to rank up, and then a bonus 3 extra daily quests, so you can occasionally get double Tomestones.
For the weapon, I've been doing the
Anima Weapon questline. The first two steps aren't too bad (farm FATEs in each of the Heavensward zones for a while, then do ten specific dungeons in order), which gets you an i200 weapon. I'm almost done with the third step now, which will get it to i210.
You could also do
Palace of the Dead for Tomestones and eventually an i235 weapon - I just haven't touched that part of the game much yet, so I'm not as familiar with it.