I love my Premier bridles from Schneiders. They’re $40 or so and are great.
I am also quite pleased with my HDR flat hunt bridle. I’ve gotten many compliments on it from people who can afford the $5000 custom saddles and $500 bridles. It was around $80 if I remember correctly.
Stubbens. I love them. They’re a well made and not the “in” thing, so you can usually find them pretty inexpensive.
Schneider’s blankets hold up well even against my Arab’s shenanigans.
Tuff Rider saddle pads. They come in pretty much any color you could possibly want and are around $15. I have a zillion of them and they wash up really nicely.
Not tack, but Dublin boots I feel like are extremely underrated. I have both paddock boots and tall boots that I abuse and they last forever.
Tuff Rider ribbed breeches. Mine are 7 years old now and I am not nice to them. With the exception of one small grease stain on one pair, they look brand new.