The phrase "a rational alternative to" is correct and usable in written English.
It can be used when discussing options or choices that are logical or reasonable compared to another option.
Example: "In the debate over renewable energy sources, solar power is often presented as a rational alternative to fossil fuels."
Alternatives: "a sensible option for" or "a logical substitute for".
Perhaps it's enough to have a rational alternative to Trump, but the stress level endures nonetheless.
For many Americans, says Mr Tanner, not working is a "rational alternative" to working.Critics cite two objections to Cato's methodology.
Metabolic engineering has become a rational alternative to classical strain improvement in optimisation of β-lactam production.
Renowned ecologist Howard T. Odum introduces the concept of emergy to provide a rational alternative to the tug-of-war over the world's most vital assets.
Epitope-based vaccines permit the selection of only a specific subset of epitopes to induce the necessary immune response, thus providing a rational alternative to conventional design approaches.
Moveon.org organized meetings around the country between members and politicians, calling for tough inspections as a rational alternative to war, and its influence began to be felt in Congress.
Though ethological and realist approaches to violence are considered in our current volumes as well as realist approaches to arms control, a positive rational alternative to war and collective violence is placed at the centre of the study of peace, as shown by our overall focus on conflict transformation and global non-military actions.
The result, according to Salafia, was a borderland better understood as "a reasonable and rational alternative to the growing sectional conflict" [End Page 309] of Civil War (14).
Lacking skills and facing a desperate shortage of jobs with career prospects, many young black men consider street life an attractive and rational alternative to the normal working world.
There is still a sense that the average Indonesian has no rational alternative to the status quo.
He says he can envision no rational alternative to "letting nature take its course".
