The novel I recommend to you is "I Have Countless Small Worlds". The main character is a transmigrator who has the abilities of countless guardian spirits. Most of these main characters are female, so the female protagonist has a lot of resources. The protagonist was constantly developing his own small world and binding it to people from various worlds. Moreover, the main character could also use the items and mission rewards in the mall to continuously strengthen himself and become more invincible. I hope you like this fairy's recommendation. Muah ~😗