Stacking of your images is the easy part, with many quality, free apps available.
But post-processing is where astrophotographers make their hard-won data really count.
StarTools lets you push your signal harder, with unrivalled fidelity, and without deep-faking detail.
The Heal module was created to provide a means of substituting unwanted pixels in an neutral way.
Open an image stack ("dataset"), fresh from a stacker.
You can convert everything you see to a format you find convenient. Give it a try!