Toddler sleep help

Hey guys. I’m in desperate need of help. We have a 2 year old and a baby coming in June. We’ve gotten ourselves in a bit of a pickle because whenever our 2yo cries in the night we would just put him in the bed with us...so now of course he’s used to that. We want

To get his sleeping habits under control before baby comes. He only sleeps about 8-10 hours a night (I’ve read it should be 12??) and wakes up very early (5am-6am).

On top of it all, husband wants to a version do cry it out, but it just does not work. I can’t do it. I can’t just hear my baby screaming for me and basically not do anything about it. So now we are sleep deprived and fighting all the time because I can’t stick with it. He just doesn’t seem to understand how upsetting it is to me.

So please please please any tips for sleep training a toddler without cry it out would be so so helpful. We’re desperate.