I would like to nominate:
swift-perception
Reason: pointfree has done the (seemingly) impossible: They have backported Apple's Observation all the way back to iOS 13! You don't have to wait to adopt SwiftUI's observation superpowers! You can benefit from them today!
swift-markdown-ui
Reason: Drop dead simple Markdown views in SwiftUI, that respond to native changes (e.g. light/dark mode). Plus, it supports more markdown features than vanilla SwiftUI Text views.