Specifics on Wiki!
Convert objects between anndata and bioconductor : https://bioconductor.org/packages/devel/bioc/vignettes/zellkonverter/inst/doc/zellkonverter.html
Scanpy in R
Single Cell modalities of data https://www.nature.com/articles/s41592-019-0691-5
GTEX https://www.science.org/doi/full/10.1126/science.aaz1776
https://tabula-sapiens-portal.ds.czbiohub.org
** For Inference of cell-cell interaction **
CellChat Jin, S. et al. Inference and analysis of cell-cell communication using CellChat. Nat. Commun. 12, 1088 (2021).