Depending on what sort of stuff you ultimately want to do, you could take a look at running Node-Red on your RPI, and isinglass this (via the Blynk Node-Red plug-in) as your connection to Blynk.
Any ESP devices you then add can talk to your RPI using MQTT messaging. This approach is very powerful, as Node-Red acts as your logic controller/rules engine and makes interfacing with devices like Amazon Alexa or Google Assistant very easy.