If you like recommendations in list form, here are three directions to try:
1) Dark, morally complex: 'Manacled' — heavy, painful, and focused on hard reckonings.
not for the faint of heart, but it shows a gritty sort of redemption.
2) Slow burn, reparative: 'Isolation' — quieter, domestic, and all about rebuilding, apologies, and trust over time.
3) Tag hunt: search AO3 tags like 'redemption', 'second chances', and 'enemies to lovers' to find middling tones between the two above.
My taste leans toward stories that make Draco face consequences rather than conveniently switch teams, so I tend to
reread the ones that keep the moral friction alive — they feel truer to the idea of redemption to me.