Well, depends..
If you are number 1 currently at your airline it'll be hard to beat.
Delta is my 4th airline and is by far "side business" friendliest i.e. they don't force you to fly a lot - based on my previous experiences.
Just like almost everywhere else you can put a trip up on the swap board and maybe fellow pilots will take it. You can ask the PBS to fly minimum. The average lines have less time that at most airlines.
I bid reserve in a well staffed category and fly literally one 3-4 day trip in every six weeks - 2 months, but of course your business has to be flexible enough to handle reserve lifestyle.
Occasionally lines offered with no flying on them at all (SIL's). They pay 55 hours and have no obligation to Delta at all for the whole month. Of course you have to be somewhat senior to get them.
