Ive read tons of info. What I am looking for is someone who has used the methods to explain which works best durability wise and how they compare based on personal experience.
Can I ask why you suggest against the alcohol/turpintine method?
Sure, there are no tanning agents in alcohol/turpentine. It is a "witches brew" at best.
It's good that you've done all of that reading because by now you know that "Braining" and "Egging" are not actual tans, you will know that they serve merely as the "fat liqueur" steps in a more complicated process in which "smoking" provides the actual tan.
You will also know that Brain tans and eggs tans are most likely not suitable for taxidermy purposes unless applied by an expert in the field. There are few that could pull it off correctly (but none who would want to).
You also know by now that there are many formulations available called "paint on" tans. Learn to pickle hides and find a suitable "paint on".