Excellent novels that I find where the MC is transmigrated/reborn into another world. Worlds that are mostly set in a historical setting like Ancient China or other places. Worlds that are full of men only with Gers(Men who can give birth) or with real  females. Some are community/tribe/kingdom building aspect which is very interesting. Some can also focus on family improvement more. Incomplete stories can be found elsewhere. You just have to search for it.