Endgame shields?

[Tarot_Card]

Hi there! I've been looking around and asked a few people without getting a really clear answer on the matter when it comes to endgame / preparation for endgame gear:

Thus far my conclusion is that: Job quest armor + Darklight is a solid starter. The weapon from the Grand Company is also amazing (Green lvl 50) - but what about shields?

Nothing from the Grand Company and no Darklight. There is the crafted one, but given how much it costs to craft it there's surely other alternatives (?) I've heard that Titan drops one, but I'd very much like a better shield before facing him.

I'm currently wearing the vintage kite shield.

Are there not any shields (or bucklers of course) that's level 48-50 and of green quality?

Thank you in advance

Edit: Thormoen's Purpose, where does it drop?