Dover makes good everyday schooling boots with fleece, but Equifits are great for showing.
I got great reviews from professional choice boots! Also heard really good reviews about veredus, e quick and equifit although they are a bit on the pricy side.
Depends on horse and what you are doing but if your training jumps or if you are lunging him I highly recomend
Escadron, veredus, amigo, equifit
I love professionals choice SMB! And Veredus open front boots!
I love jumping boots of the brands; equifit and escadron. I have both kinds, they are a good price and they last a long time and look really nice in general(: