Matthew Continetti, who edits the Washington Free Beacon and is a frequent panelist on Bret Baier’s Special Report on Fox News, has an excellent article on the parameters of modern conservatism. He sees it existing in four loosely defined categories, associating each with a young Senator whose actions seem to typify it.
The Jacksonians, named for Old Hickory, President Andrew Jackson, and associated with President Trump and Senator Tom Cotton (no known relation). His thumbnail characterization: the original American populists, not tied to foreign philosophers.
The Reformicons, typified by Senator Marco Rubio, express dissatisfaction with the directions of the more recent Bush administration. They’ve argued for the dignity of work and the primacy of the family as societal building blocks.
The Paleos, associated with Senator Mike Lee and opinion host Tucker Carlson, who are a bit isolationist and may favor an industrial policy that purists would scorn.
The Post-Liberals, associated with Senator Josh Hawley. These oppose the influence of John Locke, and believe “freedom has become a destructive end-in-itself.”
I have merely sampled out a tiny portion of what Continetti wrote, You should read the whole thing for yourself.