Planable
Planable: Content collaboration and client approvals. Teams still need a publishing path after approval if workflows are split.
Best for: Best if collaboration-first, not ops-first is not a blocker and you prefer Planable's specialty features.
Postmixr
Postmixr is a social media scheduler with a visual calendar, bulk CSV, and MCP for AI assistants. Free for up to 3 connected accounts. Starter is $14.99/month (3 workspaces). Pro is $39.99/month (15 workspaces) with team invites and no per-seat pricing.
Best for: Best if you want flat workspace pricing, a calendar the whole team can use, and optional API or MCP without a developer-only workflow.