I've had good results with the loads highlighted in red boxes in the Hornady manual (picture). They seem like they would be maximum loads, but they often do not match the max loads on Hornady's own website, and in double-checking with other manuals I've found some are much lower than max. I think they may do some sort of OCW testing to develop the ones in red. When I first started reloading I spent a lot of time trying different powders and weights and ladder tests in a couple cartridges, but rarely bettered the red loads for the amount of effort. So now I usually just work up the Hornady red loads with a couple bullets in a given weight, and maybe a second powder to see what the gun likes. I still use other manuals to double-check, but use the Hornady one the most.
If you need an out of the ordinary load, like very light bullets for a youth load, the Lee manual has the most powders and bullet weights listed of my manuals, and has powder density too. But it's so much faster I usually just try to find something that will work in the Hornady manual.