A selected list of multi-sigs and emergency practices from various DAOs that may be applicable.

TLDR:

DAO Multi-sig name(s) Actions Configuration Compensation
Compound Community Multi-sig • Create proposals for whitelisted addresses
Pause guardian -  disable a select set of functions in the protocol in emergencies
Borrow limit guardian 4-of-6 including 5 community contributors and Compound Labs
Curve Emergency DAO • Freeze or unfreeze a new pool contract 5-of-9 community contributors
Maker Oracle Emergency Fund
-Note that Maker also has an emergency shutdown for the entire protocol, controlled by MKR holders. • Pay gas to oracles in times of protocol distress. Used as an emergency backstop for the 3-of-5 Oracle Gas Costs multi-sig. 2-of-3 team/unit members
Yearn yGuard • The yGuard can immediatlly intervene in case of attack or bug to shutdown or rollback strategies or vaults
• However, decisions issued by yTeams are ultimately executed on-chain by the main Multisig which has execution power, veto power, transitionary power 6-of-9 team & community members 1 YFI token each,  with 3 years linear vesting
Idle Finance Pause Guardian (controlled by the the Idle Dev Multisig) • Pause, unpause, and call emergency shutdown. 3-of-6
Team members, some listed here
Balancer Emergency subDAO • Kill gauges, add tokens to deny list, enable recovery mode, shutdown pool contracts 4-of-7
Community “maxis” and Balancer Labs team members. Unclear how members were chosen. ‘Maxis’ receive quarterly compensation, primarily in locked up BAL tokens
Lyra Guardian Account • Can cancel a proposal before proposal is executed
• Fast track deposits and/or withdrawals when a circuit breaker or cooldown prevents processing 4-of-7 with 5 council members and 2 core-team members
Aave Community Guardian • Veto against governance attacks
• Upgrade Aave V3 markets (following Snapshot vote)
• Pause Aave markets (in case of emergency) 6-of-10 community members
Hop Exchange Community Multi-Sig Treasury management X-of-5 community members ~$4500 per signer per year (~$375 per month), paid out in 70% HOP and 30% USDC
Notional Pause Guardian Multi-Sig and Admin Control Multi-Sig Pause Guardian: pause the entire protocol in case of an emergency
Admin Control: execute upgrades and governance changes Pause Guardian: 2-of-3 composed of core team members
Admin Control:3-of-5 composed of 2 founders and 3 community members
Nexus Mutual Treasury multi-sig Sign off on governance proposals passed by the community 5-of-7 multi-sig composed of 1 team member, 3 seed investors, 3 community members
Morpho Morpho Operator Perform emergency functions on behalf of the the DAO 3-of-9 multi-sig composed of team members and investors/advisors
mStable ProtocolDAO Contract upgrades and pause contracts of unhealthy baskets in the event of adverse conditions 4-of-6 community contributors and team members $1000 USD per signer, per month for 6 month term limits
Gearbox Technical Multi-sig
and Financial Multi-sig - Technical Multi-sig can change protocol parameters & architecture, and is needed to execute winning gov proposals

Further studies can be found here.