1st thing 1st.. while autos are in pre flower u really shouldn't touch them. Some ppl sat at all. But, once the pre flower stage is over from 15-21 days. (You'll know once the stretch stops but even then, you should wait a few days)
I have a good link on defoliation for autos. I'll try find it for you.
But, when you do again defol, as you haven't taken taken much from what I can see. So you aren't in trouble
. Lots of fan leafs attached in all the right places. But when you do. You want to make sure on each node to leave a set or 2 if they not light blocking and also at the end of your line, where there's no more bud sites below try leave them also.. and all fan leafs in between are fair game, (leaf tuck where possible). Then once you have good visibility LST that to show what's there after the pre flower, (your bud sites) to the light.
And again. Make sure to leave enough fan leafs at the top. More so than you would with a fem. As autos have such a quick turn around the leafs really are key.. and they'll be the 1st to show you signs of marco defs/toxs NPK, CAL/MAG and a few others.
Happy growing