The phrase "a much better thought" is correct and usable in written English.
It can be used when comparing ideas or suggestions, indicating that one idea is significantly superior to another.
Example: "After considering the options, I believe that a much better thought would be to focus on sustainability in our project."
Alternatives: "a far superior idea" or "a significantly better suggestion".
As Patti wandered away, Adam asked, "Who's the grey-haired old lady?" "Patti Smith," I said, before quickly busying myself with the question, "Why, if we're outside on the terrace, can't we smoke cigarettes?" It was a much better thought than worrying about missing all the wonderful people from Please Kill Me who are no longer with us.
You might as well be in a Ford Focus, except the Focus is a much better thought-out car.
By Russell Platt August 17, 2017 "The Dark Mirror" is an unusually daring way to cherish the possibilities of Schubert's music, so daring that it is much better thought of as a work of our own time than of his.
"The Dark Mirror," which débuted at the Barbican, in London, in 2016, is an unusually daring way to cherish the possibilities of Schubert's music, so daring that it is much better thought of as a work of our own time than of his.
"This proposal is much better thought through and discussed within the community than the previous one," says one of its leaders, Ignacio Cirac of the Max Planck Institute of Quantum Optics in Garching, Germany.
The Food Network "once thought they had cornered the market on food television shows and they have been beaten creatively by PBS, who had much better content and much better thought-out shows," said Robert Sietsema, the restaurant critic of The Village Voice.
Jordan was a much better basketball player than Barkley; one suspects that more of his thoughts had to do with the sport itself.
Those of us in Western societies, they argue, already have more than enough of what we need, so our thoughts need to move toward making the world a much better place.
