High capacity 2450mAh (NiMH) Ladda from Ikea are virtually the same thing as the Eneloop Pros but cheaper. The new Laddas are this greenish gray color and are fairly new to the market so should come with a good shelf life. The white ones are an older model. Avoid lower capacity brown ones as they are outsourced to China and not as good as the Japanese made ones.
That is about it you can't do no better, low self discharge, high capacity, dry cell technology, little to no leakage issues (main thing is don't overheat them charging), low cost, don't explode in a ball of flames, shouldn't have fitment issues.
As for chargers anything suitable for the Eneloops should do the job but Ikea sell specific models. I think the concept is the trickle charge gets so low current at the end of charge cycle that overcharging is just lost as heat. There are various sources of info and likely a datasheets somewhere for Eneloops that give you an idea of ideal charge rates and life expectancy, it's been researched a bit by enthusiasts. Probably a bit too much to expect that from Ikea but it's the same technology, similar capacity and made at the same plant (for all intents and purposes) you can use that as a guideline.
Myself I picked up a genuine SkyRC IMAX B6AC V2 for Christmas so will try that out with the new Laddas at some stage. I don't think it will handle multiple cells at once unless you charge them as 2/3/4 cell pack etc, but it's more than a one trick pony and has external temp monitoring which is quite nice.