There’s really a lot in the game, you just have to look for it. Be careful with your rank ups.
There is a ton of T1a... but depending on your progression in the game... you probably need to ask yourself why do you care about T1A? I mean if you are in Act 5 / just starting act 6, I get it... 5 stars have some relevance... but I almost never need t1a anymore... am looking for ways to most effeciently trade it for other resources through sigil, certain event stores, or even just sell it.
Just because you happened to have a few nice pulls back to back doesn't mean they should suddenly make them more available because you want to rank them all yesterday. Duh.