There’s no way around it—if you’re going to be a serious oboist, you have to learn to make your own reeds. Even fine handmade reeds purchased from an excellent reedmaker can’t compete with reeds made to your own personal specifications, suited to your highly individual combination of embouchure, instrument, playing style, and performance situation. A reed is in a constant state of change, from initial scraping until eventual retirement, and needs the daily ministrations of a skilled reedmaker to keep it playing at its best.
Woodwind doublers who take up the oboe as a secondary instrument will need to learn at least basic reed adjustment techniques in order to have reeds they can count on in professional situations. But if you’re going to learn the mysteries of fine-tuning “finished” reeds, you’re most of the way toward learning the whole process—consider at least learning to tie blanks from cane that you purchase already gouged and shaped. Starting from tube cane gives you even more control over the finished product, but requires the use of gouging and shaping equipment ($1200+, all told).
There’s no real substitute for learning reedmaking at the feet of a skilled oboe teacher, but here are some of my hand-picked favorite guides and tutorials online. These can serve as a good introduction for a beginner, and more experienced reedmakers may like to cull a few new ideas from the wide variety of opinions and approaches represented here.