Welcome and congratulations on the VN. If it is a 2020 then you will want to answer a major question first, is it a performance pack or not. If you don’t know then an easy way to check is to see what tire size it is (assuming it is on stock rims/tires), 235/35 R19 will be the performance pack. There are some other ways to tell too. Also in the US the 2020 didn’t come with some of the same safety features as newer ones do such as cross traffic alerts.
The next question is what do you want to get out of the car. There are a lot of avenues that you could go down. Do you want more noise, better looks, more performance? Considering this is presumably your first car then I would avoid performance mods to start off.
Get to know your car really well and look for ways to safely understand the limits of the car, just not on the street. I owned my 2020 VN for a good year and a half before equipping my first performance mods to it, so there is no need to rush on that. The stock car is plenty fun to start with.
I would recommend looking into getting your feet wet with some good longevity mods and some basic handiwork. Examples include catch cans (CCs) especially on the PCV side, e.x. Boomba stage II (Look on the forums for different CCs and see what calls your attention) and try changing your oil at regular intervals and after 10k miles or so try changing your transmission fluid (the break in on our cars’ transmissions is a little rough, so this is a good idea). After that you can see how much you enjoy working on the mechanical side of things. If you don’t enjoy it then maybe look at modding the looks of your car. Modding for performance will often have you spending long nights working on the car.
I hope this helps you. Remember to have fun and be safe. I love my VN and hope you enjoy yours too!