find . -type f -name "*config*" ! -path "./tmp/*" ! -path "./scripts/*" ! -path "./node_modules/*"
Explanation:
find . - Start find from current working directory (recursively by default)
-type f - Specify to find that you only want files in the results
-name "*_peaks.bed" - Look for files with the name ending in _peaks.bed
! -path "./tmp/*" - Exclude all results whose path starts with ./tmp/
! -path "./scripts/*" - Also exclude all results whose path starts with ./scripts/

grep -n -r --exclude-dir='node_modules' --exclude-dir='logs' --exclude="nohup.out" 192 *