A good source of available packages is the Swift Package Index. You can search here packages compatible with Linux[0].
[0] https://swiftpackageindex.com/search?query=platform%3Alinux
[0] https://swiftpackageindex.com/search?query=platform%3Alinux
[1] https://swiftpackageindex.com/search?query=platform%3Aandroi...