A good start would be Akabur's Princess Trainer, which is based on Princess Maker, same as Slave Maker, although more emphasis is put on the training/corruption side, than in the management side.
Then, there are several games inspired by PT, the most famous may be Four Elements Trainer and Something Unlimited.
I'm too lazy for management games so I can't recommend, but one pretty famous would be Jack o' Nine Tails.
Lastly, there are a lot of trainer games not properly tagged or just not well known. I'm going to recommend one of the latter, that I enjoyed a lot, though It is sadly abandoned (but with hours of content):
You must be registered to see the links