That's interesting, I didn't know that taking these drugs in a low enough dose was an option. Since what I've seen here, people get extreme feminizing changes that to me would seem completely insane (if my intention was to stay a man).
Dutasteride and oral minoxidil, at least, can be taken in theory without side effects, but I've seen that eventually dutasteride use catches up to you because it inhibits type I DHT which has many more purposes than type II. Oral minoxidil is more effective because the dosage is essentially more direct into the bloodstream, but again, for long term use I am skeptical about it's safety, even at 5 mg.
As for the other ones, well, taking estrogen I haven't explored because it seems like a preposterous thing to do. My point is, if your goal is to minimize side effects while keeping a somewhat acceptable head of hair, then there are much safer routes to take.
For me at least, heading pretty much to Norwood 5 by the age of 24, I'm happy with just not being slick bald. If I have some sort of hairline and can at least rock a buzz cut, albeit somewhat diffuse, that's a huge win rather than being a cueball. A few years later, the big 3 have somewhat slowed this down, and I'll get a transplant down the road if need be. But it's all risk v. reward in the end and having realistic expectations.
