The post describes several methods to retrieve multiple records from Dataverse
Retrieve data using C#
Query Expression

FetchXML


LINQ
Note: Early binding is required for this. In this example, there would need to be an early binding file for ‘SystemUser’ (Figure 5)


Retrieving data using TypeScript / JavaScript
Web API
Example 1

Example 2

Figure 8 & 9 represents how Figure 7 can be updated to use a custom helper function setLookupValue(). For more information see Get and set a dataverse lookup column

Example 3

Further reading
Make XRM WebAPI calls synchronous