David Kotz, an emeritus professor from the University of Massachusetts Amherst, just published a book entitled Socialism for Today: Escaping the Cruelties of Capitalism. The book, published by Wiley, has a full chapter on what socialism should be like.
According to an interview offered by the author:
My view closely follows the model of socialism in Pat Devine’s Democracy and Economic Planning. In my view, the following are some of the key features of a future democratic socialism:
1) Economic allocation decisions are made by all parties affected by the decision. That includes workers, consumers, and the local community.
2) Differences are settled whenever possible by negotiation and compromise among the relevant parties. If necessary, majority voting can be used.
3) The mass media are free to criticise the state and its officials.
4) Individuals are free to criticise the state and its officials.
The book is available at: https://www.wiley.com/en-au/Socialism+for+Today%3A+Escaping+the+Cruelties+of+Capitalism-p-9781509561476