Thanks. I have added eb to https://github.com/dbohdan/recur#alternatives.
I created a library for Go that includes retry mechanisms. I wouldn't call it an alternative, but it can be used to do similar things: https://pkg.go.dev/git.sr.ht/~mariusor/ssm#example-Retry
Great list! I appreciate whenever an open source project links to similar ones
(FWIW my own contribution is https://github.com/oils-for-unix/oils/wiki/Alternative-Shell... )