Is there any alternative for JMeter that you guys use?

not personally, but my team has used Gatling, including from automated jobs, which is something JMeter isn't suited for afaik

I find Gatling much nicer than JMeter, so long as you can cope with Scala. It’s drastically better at generating load, too, because it isn’t thread per transaction (though Loom might change that).

coping with Scala is better than coping with a GUI :D

I’m perfectly happy with Scala! But plenty aren’t.