Which Red enjoys TA?

Sophia enjoys it, she's the best TA+Raven tome wielder do to her good mixed defense for a mage.

Sophia is by far the best user of Raven!TA full stop.
As for a great option I picked up from Cav829 in another topic, you can use it on Xander over Fury 3, trading in his match-ups against lances for a much better performance against green mages. His defence will still negate sword users so that's no problem either.

Your Sophia's IV is workable but the optimal one, as already mentioned, is definitely (+ATK/-SPD).

Remember that she's a hard wall against greens and colorless, judge her entirely based on that and you'll be extremely happy with your investment.

Red is the worst color for TA in the current meta. It would do much better on a Green.