ref: https://bmcbioinformatics.biomedcentral.com/articles/10.1186/s12859-021-04184-7
I'm not exactly sure about the quality for the NN. But this tool does combine mapping reads from minimiap2 and ngmlr and merge variants called from sniffles and svim.
I did some modifications to the original code. Please go to the SVNN folder for more details.