"Reasonable" is of course subjective, but what are some policy platform points that are in the realm of "debatable" policy by today's standards (either historically relevant or still relevant today).
And we should maybe limit it to polices that were distinctly associated with the Nazis in contemporary German politics. (e.g. the policy of putting thieves in jail wouldn't be a very interesting Nazi policy. )
They got the Czechs to hurry up and switch to driving on the right. The government of Czechoslovakia had been planning to do this for years, but there had been a lot of opposition and they had been having problems getting the tram lines in cities reoriented. Something similar happened in Austria after the Anschluss, where half of the country had been driving on the right and half on the left, which is just ridiculous.
At the time of the Nazi's rise to power, the world was reeling from the effects of the Great Depression, so many of the Nazi party's early economic policies were done to spur growth and protect German interests.
Many of these policies are radical by today's standards - nationalization of private businesses in key industries and the banning labor strikes and lockouts - while others are not as radical by today's standards but outline a problem in the making - policies to strongly discourage foreign imports, deficit spending, and so on.
But to be fair, during this period of time a lot of countries were implementing similar economic policies as desperate measures to try to end the Great Depression.
One thing you might find interesting is the National Socialist Party's official 25 point platform. Many of their points are omens of the bad things to come - #2, We demand land and territory (colonies) for the maintenance of our people; #4, Only a member of the race can be a citizen ... and no Jew can be a member of the race; and #8, any further immigration of non-citizens is to be prevented, for instance - but there were also a number of points that would be considered tenets of any mainstream socialist party:
We demand a generous increase in old-age pensions.
We demand that specially talented children of poor parents, whatever their station or occupation, be educated at the expense of the State.
We demand that the State shall above all undertake to ensure that every citizen shall have the possibility of living decently and earning a livelihood.
As well as ones that would be considered more radical:
We demand the nationalization of all trusts.
We demand profit-sharing in large industries.
Source: Adolf Hitler: The Definitive Biography by Toland.