I'm looking for a good hot plate?

[juggernaut]

For concentrates and edibles.
Recommendations.

 

[TripsRabbit]

New wave cooktop

 

[TripsRabbit]

It has a precise temp setting range from 100f to 575f.

https://www.nuwavecooktop.com/common/PCJAH05/howitworks.asp