I would contact a few good saddle reps and have them come out to fit you and your horse - even if you don’t plan on buying new; sometimes they have demos for sale or could make you a good deal on a new one that you could afford with a trade in.
The saddle brand really depends on how you like your saddle to feel and how your horse is built.
I think the saddles to keep in mind to try are:
Comments based on my personal trials and horses:
Butet- I have ridden in other riders saddles and found the seat and twist to be one of the most comfortable saddles I have ever sat in. They run narrow for the horse. I purchased one and how it was a lovely saddle; with one of my growing horses it got too narrow for him and I sold it.
CWD - I have also ridden in other riders saddles and they are very balanced saddles. I purchased one and it fit my big horse really well. It was fitting my current horses but they both grew out of it. It’s such a beautiful saddle I don’t want to sell it but I wont use it. The CWD leather is quality - I have the full calf and looks brand new after 6 years of use. I do think compared to other saddles they can be a bit heavy.
Votair - I demoed a few and was surprised I didn’t like the feel. A wide twist and the stitching was a bit cheap looking.
Devoucoux - Great saddles. I have ridden in other riders saddles and had a rep come out. Almost bought one. Rides similar to the Butet if you like a narrow twist. Butet is a bit more cushy in the seat which I appreciate.
Tad Coffin - Ridden in other riders saddles. I think they are very nice. I have ridden in older ones so they were a bit hard and flat. But I’m okay with that. They have been around for years and have upgraded with the French saddle market going on.
Meyer - I have to mention this one because after a lot of saddle shopping this saddle is excellent for the very wide back/spined horses. The leather is soft and grippy. Twist is perfect and I love the balance. The first day I sat in it it felt broke in already.
County - I have seen them at horse shows. Never ridden in one. They looked kind of big/bulky to me. But probably because I like a smaller, lighter saddle.
I’m sure there are more companies but these are the ones I have seen at horse shows.
And if you read any threads here about saddle shopping; it usually is not always an easy event.