No fake rankings. The honest shortlist is Flowise, Langflow, n8n, Make, Zapier: different centers of gravity, all used well and badly. Compare on criteria, not marketing. - No-code vs low-code: some builders quietly expect JavaScript in a code node. Know which you are signing up for. - Self-hosted vs cloud: open source options keep your data yours, but you own the uptime. - Cost at scale: free tiers are generous until your agent loops a hundred times a day. Check execution limits before the invoice. - Monitoring: can you see what the agent did step by step when it goes wrong? If not, you debug blind. - Model choice: a builder welded to one provider is a future migration. The best builder is the one whose tradeoffs you chose on purpose. Want the agent without the homework? PrivateLLM deploy sets up your private LLM on AWS for $50 plus usage.