For "popular":
* Rhyming with the "lar" sound:
* ocular
* particular
* circular
* muscular
* regular
* Other rhymes:
* bipolar
* molar
* solar
* collar
* foliar
For "recitation":
* Perfect rhymes:
* citation
* elocution
* meditation
* reputation
* graduation
* illumination
* Near rhymes:
* deception
* perception
* conception
* direction
Note: The best rhyming word will depend on the context of your poem or sentence.