The challenge is to find good, correct terms related to stuff like
amplicon/marker-gene sequencing/16S/18S/metabarcoding/taxonomic profiling
functional profiling, metagenomics "proper", metagenomic assembly, metatranscriptomics, metaproteomics, meta-etc.
environmental sample/sequencing/etc.
non-culture microbial sample
microbiome
N.B.: Also for "macro" biology!!!