Switzerland and Italy Honeymoon in June

Hi guys! My fiancé and I are planning on going to Switzerland and Italy for our honeymoon this summer in June (5 days in each).

We’re trying to figure out if it would be better to stay in one city and do day trips via train, or if we should go to a new city each day or couple of days and stay there.

We were thinking of staying in Interlaken, but I’ve heard it’s very touristy… Would if be better to stay in Lauterbrunnen, Lucerne, or Wengen? As far as Italy, we were just thinking about staying in Lake Como.

I know we are planning this late, but any advice is greatly appreciated! TIA!