TYM/Branson 2515
Kioti CK2610/20
LS MT225E
Mahindra 1626
Kubota
L2501/02
John Deere 3025E/D
New Holland Workmaster 25
Massey Ferguson 1526
Generally to keep away from systems like DPF you're limited to 25 horsepower. I'm may have forgotten a machine or two, and if I did someone will chime in I'm sure, but above I've listed the largest machines sitting at 25 horsepower each manufacturer offers.
The TYM 2515 is a legacy Branson model that's been quite popular, and TYM dealers seem pretty happy about adding it to their lineup. The Kioti and Kubota options I listed are old and new versions of the same models, they've both introduced updated machines for 2023. The John Deere 3025E and 3025D are, despite the similar name and size, separate machines. The 3025E is hydrostatic, and the 3025D is a manual. Lastly the New Holland Workmaster is built by LS for CNH, and is basically an LS MT225E in a deeper blue.