Productizing Digital Marketing

I've been in the digital marketing game for a while, and have recently been looking at ways to productize one of the services that I currently manually provide for clients. Some tasks that I did for clients like Planet Fitness includes evaluating marketing
campaigns, improving ad campaigns, creating long-term inbound marketing strategies, and quantifying the effects of marketing decisions on a company. In your opinion should I be more ambitious in trying to create something similar to SproutSocial, but with more advanced statistics and insights, or should I focus on something small like keeping track of Instagram marketing campaigns through Google Sheets? For your own companies, what would you say is the number one marketing task you would love to outsource?

To give some value to the community I'll give some more details on one method of how I analyze social media data. I generate a list of competitors based on your niche, and look at the keywords and hashtags that they consistently use. Using these as labels, I then run some regression models to predict the effectiveness of a post. If anyone wants to chat, feel free to contact me at salifarious@gmail.com.