CC Madhya 19.189
dāsya-bhāva-bhakta — sarvatra sevaka apāra
“Examples of śānta-bhaktas are the nine Yogendras and the four Kumāras. Examples of devotees in dāsya-bhakti are innumerable, for such devotees exist everywhere.
The nine Yogendras are Kavi, Havi, Antarīkṣa, Prabuddha, Pippalāyana, Āvirhotra, Draviḍa (Drumila), Camasa and Karabhājana. The four Kumāras are Sanaka, Sanandana, Sanat-kumāra and Sanātana. The servant devotees in Gokula are Raktaka, Citraka, Patraka and so on. In Dvārakā there are servants like Dāruka, and in the Lord’s pastimes in the material world there are servants like Hanumān.