I don’t want to flood you with you too many links but here are a few you might find helpful. They’re all partnership/consortia guides.
The SDG Partnering Guide book: https://www.thepartneringinitiative.org/wp-content/uploads/2020/07/SDG-Partnership-Guidebook-1.0.pdf
Effective Consortia – A Guide to Emerging Thinking and Practice: https://www.bond.org.uk/sites/default/files/learningfromconsortia_effectiveconsortia_72pages_final.pdf
The Multi-stakeholder Guide to Partnering: https://mspguide.org/