I guess I am one of the lucky people who has had success with pee pads
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How I did it was to first keep my baby boy on a feeding schedule so I had a good idea of when he would need to potty. After he ate, I would place him in a pen that was lined with pee pads and when he pottied he would get heaps of praise and treats and I would let him out to play. I would leave the pen open for him during the day so he could still access the pee pads whenever but I would lock him in after eating because I knew he would need to go.
Over time, I kept taking away the pee pads until there was just two in a corner and he would still keep going on them. Eventually I got rid of the pen and he would go to his corner to potty whenever he needed to. My baby boy was completely potty trained by 10 months and he has never had an accident since (he's now 2)
P.S. I don't know if this helped with his training, but I always made sure that he knew I was the boss; he always got fed after I ate my meal first, even when playing with toys, if I take them away he knows to sit and let me take them. I think because Yorkies are so independent and strong willed if they don't see you as the boss they will just ignore you haha.