Send me “safe” and my muse will tell you 3 other muses they’d die for
The Doctor lived to travel, to adventure and do good where he was able.
She was his savior and his angel, everything good in the universe wrapped up in the form of a young woman. She was as bright as the morning sun, gentle as a summer breeze, and as beautiful as the forget-me-nots she loved so much. She was his conscience, his friend, and his wife. With Melanie Lamonte at his side, the Doctor was happy for the first time since the war, and the pair of them traversed the universe hand in hand.
Jack Harkness was initially a pest; a smart mouth who just rubbed the Doctor the wrong way. But when Mel encouraged him to join them on the TARDIS, he soon became the Doctor's best friend. And when Jack wanted to bring Gabriel along... well, the more the merrier.
Then, there was the boy. So young, but with more potential than the Doctor had seen in a human in ages. Maybe he was too hard on him, but if so, it was only because he expected more from the young man. Honestly, the Doctor saw a lot of himself in Sam Winchester, and knew he deserved a second chance.
The Doctor lived to save the universe, but he would die for the ones he loved.