Try getting as level as possible when parking, then fine tune with scissor, bottle or some other type of jacks to the frame.
It's much nicer to get the suspension movement out of the equation when you're done.
Lots of people seem to like the
LevelMatePRO Bluetooth® Vehicle Leveling System which tells you how many blocks for each wheel.
Find your spot, check the app, back up, place your blocks, drive forward. Done.
A less expensive leveling alternative is to use the
Truma App "Tools" on your smartphone to get the same information.