What services should I offer in this productize business?

Hey there! I am soon launching a design agency that offer design services on monthly subscription. There are ton of special features such as: Delivered in 24 hours, pause, play and cancel the subscription anytime, no contracts or long meeting, unlimited design request in a month and the list goes on... My target audience are SaaS businesses and indie hackers how are building businesses. What services do you guys think I can offer?