Heartwarming / Sonic Generations: Friendship Is Timeless

• Sonic cheering up Twilight in Chapter 9 arguably qualifies.
• Sonic comforting Tails after Chrysalis pokes at all of his insecurities while disguised as Sonic.
• Shadow's monologue regarding Maria in Chapter 14 qualifies, big time. Even moreso as a Tear Jerker.
• The Mane 6 reconciling after their joint Heroic BSoD in Chapter 16.