@Aron_Quiray, I’m not sure I still follow you. Here’s the typical architecture you would build to get your data into data store other than S3. In your case, you enrich data in real time and you would follow the 2nd picture.
The post is a bit outdated but the same idea is still relevant. I’m not sure if Firehose fits here as files are expected to be in a certain format. The S3 Loader does the job for you - prepares the files for batch processing with EmrEtlRunner (to load the data to Redshift) unless you want to analyze data by some other means (in S3), for example with Athena.