What is another word you can use instead of just now?

Here are some alternatives to "just now," depending on the context and desired nuance:

For recent past:

* Recently

* Moments ago

* A short while ago

* Earlier

* Previously

* Not long ago

* In the last few minutes/seconds

* Just a minute/second ago

For immediate past:

* At this very moment

* Right now

* Currently

* Presently

For emphasizing immediacy:

* Instantly

* Immediately

* Straight away

* Right away

For more casual language:

* Just then

* A sec ago

* Just before

The best alternative will depend on the specific situation and the tone you want to convey.