Memorial banners or singularity based banner now

Play the game, read the news.

You can also find the list here! There are two pickup summons.
https://grandorder.gamepress.gg/fgo-usa-tour-2019-kickoff-commemorative-campaign#gacha

For future reference, if you go to the banner you want and click "summon info" in the lower left corner, it tells you exactly what is on rate-up, when, and their drop rate.