Barman[1] and Wal-G[2] are the two I've seen most recommended. They do things a little differently though so not drop-in by any means.
replyI've just transitioned to using a full compressed/encrypted sql dump from a cron job. It's been more convenient anyway when I want to restore. But incremental backups are hard that way so if your database is big, it's not a great solution. It's also not my primary backup (I use a managed pg with point-in-time backups) just a snapshot backup, so that's worth considering as well.