The best Rose Bot alternative is the one you do not have to configure.

1. Limzo: the alternative that runs itself. Limzo covers the whole path a spammer takes: newcomer verification at the join, automatic scam and promo removal, a link safety scan, flood control, /warn warnings with automatic enforcement, a fake-admin impersonator guard, raid protection, an optional language lock and a cross-group network shield that blocks spam already confirmed in other Limzo groups. Every layer is on the Free plan and works from smart defaults, with no rule syntax to learn. In the same admin slot it identifies helpful members, rewards contribution with karma, levels and achievements, publishes weekly highlights and gives the group a public community profile. See the full anti-spam stack or the Limzo vs Rose comparison.

Other options people consider:

• Combot: moderation, filters and triggers set up through commands and a dashboard.
• Group Help: group administration through in-chat menus.
• Shieldy: an open-source bot focused on newcomer verification.
• Chainfuel: a web platform for member tracking, broadcasts and scheduled messages.

Each of these either expects your admins to build and maintain the rules, or covers a single step of the spam path. Limzo covers the join, the message, the link, the flood, the raid and the fake-admin trick from defaults, with every layer free.

• No rules to maintain. Protection ships built in, with one switch per layer.
• Verification that stays shut. One tap inside the chat, no web page to load, and an account removed for not verifying is checked again if it rejoins.
• Dangerous links checked automatically against a continuously updated database of known phishing and malware sites.
• Fake-admin alerts when someone joins or renames to mimic your team.
• Automatic shared protection instead of hand-curated federations.
• One-tap undo for any mute or ban from Recent actions in the Mini App.
• A community layer Rose does not have: analytics, karma, levels, achievements and weekly highlights.

You can switch at your own pace. Add Limzo, let it run next to Rose for a week, then switch off the Rose settings Limzo now covers.