@Reginald_GS
SharePoint (e.g. Learning Pathways) is the best option, however the content is not searchable from within Teams, so here is an alternative suggestion:
Create an org-wide team (if you do not already have one), add a "Corporate User Guide" channel (with limited post/reply permissions). Add posts for topics and FAQs, with associated replies for each tip, recommendation/guidance.
If you have lots of content, you could consider dividing the "user guide" into several channels.
