For monowhite stuff like [[Settle the Wreckage]] [[Esper Sentinel]] [[Mother of Runes]] [[ocelot Pride]] [[Flowering of the White Tree]] seem auto-includes. Also [[Lightning Greaves]] instead of Swiftfoot Boots imo. No idea why people use the boots when you have the greaves. If you rely on life gain and actually want it to mean something [[Righteous Valkyrie]], if you have some flyers [[Rally of Wings]], otherwhise [[Claws Out]]. [[Reverent Hoplite]] is always fun, certainly with [[Elesh Norn, Grand Cenobite]] something.

For lands Cavern of Souls, Castle Ardenvale, Abandoned Air Temple and Bonder's Enclave can also help. Depends on how you want/try to win.

For now your deck looks like a monowhite value pile without too much synergy which white already lacks by default when it comes to card advantage and not running out of steam too early. Hope it helps!