Period you say? As though that's the end of discussion, look no further, crunch no numbers, consider no other decks whether you have them or not - that's it?

It's hard to come across win rate data these days, [but a guy put up some numbers he analyzed a little while back that provided some useful info that could help OP(https://www.reddit.com/r/ModernMagic/comments/7jjv00/latest_developments_in_the_modern_metagame/), a bit less anecdotally and hyperbolically. While the sample size is too small to be considered representative, here are some useful data-driven examples of decks that performed as well or better than TitanShift, which did indeed do very well vs Eldrazi Tron at a 71% game winrate. Affinity and lantern both put up equal win percentages against the deck at 71%, while Elves (75%), UW control (75%), and Merfolk (83%) all put up better win percentages. Admittedly the sample sizes that generated these win rates is too small to be considered by any means conclusive (We call that nuance! Try it!), but it does suggest that perhaps there are a handful of decks with comparably favorable matchups against Eldrazi Tron.