Data repositories for data on the Tumor Microenvironment?
Have you seen the St Jude Children's Research Hospital Pediatric Cancer data repository PeCan?
They have a bunch of data on a wide range of different types of pediatric cancers. These are all in the form of genomes and RNA-seq. However, they also have a bunch of visualizations set up so that you can see how these profiles work from a perspective of mutations and RNA in tumours of all sorts.