There are only a handful of races who possess cloning technology. Of those, the Kaminoans were the only ones that had large cloning facilities. Those, of course, were the same used to create the clone army for and during the Clone Wars.
The new Empire knew that such technology could be devastating should it fall into the wrong (or would it be right?) hands. To prevent this, they seized control of the planet and the facilities. From Wookieepedia:
The end of the Clone Wars resulted not only in the near destruction of the Jedi Order, but also the rise of the Galactic Empire in the place of the fallen Republic. Seeking to secure the vital cloning facilities that were responsible for providing the Empire with the clones that helped to secure Emperor Palpatine's rise to ultimate power, Imperial control was firmly established upon Kamino through force of arms.
But the Kaminoans did breed a new army to fight against the Empire. This army was wiped out by a detachment of the 501st legion.
Although Kamino would continue to grow more stormtroopers for the Empire, a small group of Kaminoans grew resentful of the Empire's treatment of Kamino as a virtual military police state. In response to the Imperial presence on their world, the Kaminoans launched a covert rebellion against the Empire by discreetly breeding a new army of clones, all based on the genetic template of Jango Fett. Unlike the first Clone army that had been bred for the Republic, the newest generation of clones were engineered with absolute loyalty to Kamino.
So, to answer your question more directly: Yoda, Kenobi and other surviving Jedi might have had the idea to have a new clone army bred, but the facilities to do so were under Imperial control.
The original clone army was ordered by Papaltine by way of Sifo-Dyas. He clearly DID think about the possibility of a new army (Jedi, Force Users or otherwise) and had Imperial forces take control of the facilities needed to breed such an army.