getting real-time data into systems when you have tons of it flowing in

were building a new system that needs to ingest and process a super high volume of real-time events from all over the place. like, millions of events every minute. were looking at cloud infrastructure options, but the sheer scale is kinda daunting. what are your go-to strategies or architectures for handling this kind of massive real-time data ingestion without breaking the bank or the latency budget? are there specific managed services or patterns youve found particularly effective? curious about your experiences.