Hmm... those are very broad questions to try and answer. So I will copy and paste a response I made in a different game thread. Maybe you will find something in this list, if my descriptions help at all. And remember, this list is not complete. There are tons and tons of great games out there.
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Cohabitation is where you are a middle aged man that moves in with your brother and his family. You then spend time corrupting the daughter, and much later the wife. No magic or potions involved (other than some sort of spanish fly aphrodisiac later in game), just slow training and corruption of morals and eventually blackmail of wife.
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Glassix involves hypnotizing everyone you meet, it has a very large pool of characters to grab. Mother, sister, neighbors, merchants, school principal, teachers, students, police, maids, librarians, stewardess, etc... last time I counted there was over 30+ different girls and women. There are multiple stages to unlock with each girl, and you can even alter their clothing. And later with certain unlocks you can cause many interesting events to occur.
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Man of the House is where the MC lives with his mother and 2 sisters. He is treated normally. Mom wants him to get a job and do chores, older sis teases and manipulates him because she is older, etc. Thru the game you do jobs like delivering Pizza, discover secrets of everyone, and then manipulate, corrupt and influence them all to become a closer family with yourself as the Man of the House.
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Dark Magic involves using ... Dark Magic to corrupt your family and the entire city for your own needs. It has a slightly Medieval feel to it.
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Corruption involves using potions to corrupt both men and women. So that the men allow you to do what you want to the women in entire city. Later changes to females makes them go thru exagerated whore makeup, which may not be to everyones tastes, but still well worth a try.
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Straitened Times involves you and your female family being forced to live in a hotel while your father is in prison. You corrupt them all and many other women you meet. No magic or potions, just good old fashion getting friendly with people.
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The Twist is you as MC in High School, and you corrupt everyone in the town, school and house. Again no magic or potions. The art style is unique, but still pretty good. Game features many areas where player has full camera control within the area, and all erotic scenes too. Allows for your own choice in where the screen looks. Also can choose to change clothing of females.
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SuperPowered is a near future world, where mankind has created injections that people can take that can grant some superpowers. You're a High School student and cannot afford to pay for the really good ones, so you start off with a cheaper support power and this then extends into Mind Control and other abilities to manipulate peoples emotions, thoughts, memories and dreams. Very interesting and unique concept with a lot of content in it. You can change peoples personalities, their likes and dislikes and lower or increase their inhibitions. As the girls stats change, they eventually start changing the way they dress and even their cellphone profile images change.
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Lust Epidemic and it's sequel
Treasure of Nadia are very high quality games. Where you are a University student, your mom is the dean. But a scandal involving students and sex prompts a meeting between a rival university, yours and the media. Everyone gets stuck overnight while a massive flood destroys half the city. During this time you discover someone there brought a chemical concoction they made and used to make women uncontrollably aroused. You spend time trying to get your hands on as much as you can, and have your way with many beautiful women. Highly recommended series, everything NLT Media releases is top quality.
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Stranded Dick is still in development. Involving you and your family stranded on an island like the movie Cast Away. You are a young healthy man with needs and eventually convince everyone to get much closer. You then discover others on island and there is a developing story with a plot. Again, in development, but very promising and very good quality images.
There are many others... but again, depends on tastes.