I am not sure following funds' or advisors' white papers is a so great idea since they may be biased to promote one vision on the way the markets operate. For instance, remember that Blackrock has been vocal about the need for a standardisation of corporate bonds few years ago (see FT in 2014). It is (in my opinion) a good direction, nevertheless it is certain that more standardisation reduces the cost of operation for such large asset managers.
A good option is
- select a subset of publications written by researchers from funds that are published in academic peer-reviewed journals (not journals owned by publishers with funds as main clients; I am talking about really standard, classical publishers like Wiley, Springer or World Scientific)
- look at papers published by public or independent agencies, like the ESMA, the IMF, etc.
For good entry points on the authors' side, I would suggest to follow academic papers written by Andrea Frazzini (AQR), Jean-Philippe Bouchaud (CFM), or Thierry Roncalli (Amundi). On organisations' side, ESMA Risk Dashboards are commenting the state of the market, yearly IMF Global Financial Stability Reports are great (you can read previous years reports since topics are different each time), Bank for International Settlements (BIS) quarterly reports are nice too.