pgSentry

pgSentry, a PostgreSQL micro-DBA designed for teams that don’t have a dedicated DBA (or engineers who want quicker, clearer DB visibility).

You connect your Postgres cluster using a read-only user, and pgSentry will automatically analyze key health areas like tables, indexes, bloat/vacuum signals, replication lag/WAL/slots, locks, and slow query patterns, then suggest improvements with actionable recommendations. 

Sleep soundly while
pgSentry watches your DB.
PostgreSQL-only. The micro-DBA for modern engineering teams — detect replication lag, bloat, and slow queries before they become incidents.

https://pgsentry.com/