I am not sure if it is worth it to find these if you don’t have faith in any of the nikayas other than sutta nipata. I am still reading my first round on reading the suttas, currently on AN book 8.
Here’s the description of the 6 heretical teachers during Buddha’s time: DN2 SuttaCentral
And in SN24.5-8, we see that these views are part of the views to be abandoned: SuttaCentral
In MN76, SuttaCentral we see Ananda address some of the heretical views too.
MN14 he talked to the Jain monks directly: SuttaCentral