Here are a few items the NEC does qualify as Continuous Loads:
422.13 Storage-Type Water Heaters
424.3(B) Branch-Circuit Sizing. Fixed electric space heating equipment
426.4 Continuous Load. Fixed outdoor electric deicing ans snow-melting equipment
427.4 Continuous Load. Fixed electric heating equipment for pipelines and vessels
625.14 Rating. ...for the purpose of this article, electric vehicle charging loads shall be considered to be continuous loads
In Annex D, there are examples of calculations.
Some of the calculations show lighting as a continuous load.
Example D3 Store Building is one of those