We wouldn't be breeding right now, that is for sure. But in the next year or so most likely. We would wait until she is up to full weight and probably do some X-rays to make sure that she doesn't have navicular changes or anything along those lines.
For a TB I would probably amp up the dressage aspect, especially since that is where most of the eventing competitions are being won these days. So I'd chose a nice dressage horse that has all-around scores and lineage.
I like these horses:
De Feiner Star He's got Riverman in him but is a little "more" than Riverman. I think a nice cross with a TB would produce the perfect mix between Performance and Endurance that you need for eventing. I've actually put him on the "short list" for breeding my mare too as well ;)
Qredit Even though this guy is young I like him as well. Again he has impecable lines, both jumper and dressage and adding your mare would give that endurance aspect some of the warmbloods lack. Although trakes tend to be a bit lighter.
Quite Easy Now this is going to be the only full-on jumper that I am going to show you but his lines are to DIE for. I don't necessarily like the rides he is getting in his video but he still jumps carefully and moves nicely.
I'd like to note that Hilltop Farm has an option to send your mare to them and they'll take care of everything from breeding through the 30 day vet check or longer if you wish. This is something I would suggest if your mare is maiden. I'd also look into all their breeding information as it may be helpful to you :)
Lissaro van de helle is a jumping bred Hannoverian stallion but is currently riddn by
Dressage rider Edward Gal.
Lissaro is Hannover,Rheinland & Westfalen approved and won the Bundeschampionat dressage at age 3,4 & 5.
Pavarotti van de Helle is a jumping bred stallion but with very succesfull dressage offspring.
Think of internation dressage horse Paganini,very succesfull but died a couple years back,China's Town Dream with Vicky Smits etc.
Visage van de olmenhoeve is also a very promising stallion.
I've seen a daughter of him competing at an eventing course and she did very good.
Check out all these fabulous stallions and see what offspring they are throwing. Better yet, check out the mares they were paired up with, focus on the mares that are similiar to yours and look at their babies. You mentioned you won't be breeding this year, so now you have a ton of homework to do. First off, find out which ones will allow a breeding with your mare, then go from there. To be responsible & get what you want out of this expensive process, do your homework!