I could tell you how to do it in five minutes if you have Morningstar Direct or Zephyr. Without those - or Evestment - you’re going to have a long haul ahead of you.
Drawdown is a commonly used metric for Alts and the Global Allocation space since finding an appropriate benchmark is nearly impossible. I’ve seen an increased weight being placed on max drawdown in the fixed income world too, especially after so many bond funds blew up in 2008 (when clients really needed them to perform well). But, IR is still widely used in the FI world.
I don’t really know of any free databases that can assist you. Sorry. I know that in the Global Allocation space you’re going to be looking at Blackrock Global Allocation, Ivy Asset Strategy, and First Eagle Global. Those are, hands down, the best.
In fixed income everything starts with PIMCO. Fixed income is a large universe though, so depends on what sector you’re looking at. Doubleline, Met West, Oppenheimer, and Dodge & Cox are all very popular across the board.
I’d need way more info on the alt space before being able to direct you anywhere. Managed futures, long/short equity, long/short debt, merger arb, etc…