There's tons written about when to take Soc Sec, just Google and read. And the pensions I know of are fairly simple financial instruments, most people take them when it maximizes their expected benefit payout unless they need the income sooner.
The accumulation phase has fewer variables and is therefore considerably simpler (though not easy) than "decumulation" so there's much less written. The book below is the most serious resource I've found, but it's not for the faint of heart and it was written before the GFC (2008 global financial collapse). Some reputable "experts" have reconsidered and (in some cases, substantially) changed their recommendations since the GFC.
No one agrees with other people's opinions; they merely agree with their own opinions -- expressed by somebody else. Sydney Tremayne
Retired Jun 2011 at age 57
Target AA: 60% equity funds / 35% bond funds / 5% cash
Target WR: Approx 2.5% Approx 20% SI (secure income, SS only)