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Have you tried @LabPlot? It's an easy-to-use, open-source, cross-platform curve fitting, data visualization and analysis (and much more) software.
It has a YouTube channel with short video tutorials.
https://www.youtube.com/@LabPlot/videos
Here is list of @LabPlot features:
https://labplot.kde.org/features/ -
If you are looking for a curve fitting software, check out @LabPlot. It's easy-to-use, open source and cross-platform. Among many other things, it can also be used to fit statistical distributions.
How To Fit a Curve in LabPlot:
https://www.youtube.com/watch?v=gLDwTVl8XCA