In my experience Frontend developmemt mostly consists of jumping in and developing in an extreme programming or very agile way. Although in my bachelors thesis I will have to do the architecture and development of an SaaS-Frontend and use the waterfall model to do so (Analysing requirements, making broad Modelling/Planning, making detailed Models, Implementing, Testing, Integration). For databases and object oriented backends models such as UML Class Diagrams and ERMs are common for the upfront planning of the architecture.
What types of models can be used to do the architecture of a component based frontend like React.js?