R script end to end meta analysis geo download data

Hi all,
I am looking for an efficient workflow in R which could run the meta-analysis (like plot, heatmap, test) on the data downloaded from the GEO dataset (human genome, HumanMethylation, etc). I know there is some end-to-end workflow on the crossing R work packages. could someone give me a suggestion which one you think is the more efficient one? Thanks in advance!
Best, Xinhui