Don't want road bike with drop handlebars and skinny tires. --- too fragile
Don't want mtn bike with knobby tires, suspension --- too heavy
What you need is a HYBRID.
They have fatter tires than road bikes, more comfortable but not as fast. Thay have triple chainrings that allows you to climb hills easier. Their upright riding position makes riding more comfortable. Look for one that allows you to put racks and panniers for your future tours.
Now that you have narrowed down the type of bike you need. Go to the hybrid section of this forum or visit your local bike shops to see which hybrid suits your needs and budget.