There are quite a few i2C sensors to choose from e.g. BMP280 or SHT31.
Alternatively you can connect your sensors to an ESP such as a D1 Mini running Tasmota or similar, and send messages back to your Pi via MQTT.
There are a wealth of different types of sensors supported, so no need to try and find NR nodes for a particular sensor that way.
It's also a safer option than wiring directly to the GPIO header.
EDIT: you could also keep using your DHT11 with an ESP 
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