You’re looking for a 700c suspension fork with a 1/8” straight steerer and canti mounts? If you are looking for something new, there is no such thing. If you want to switch to v brakes the Rockshox Paragon will work, but the axle to crown length is going to really change your geometry. You may be able to find some 25 year old fork on eBay, but it won’t be easy.
Paragon Gold RL - FS-PARG-RL-A1 - RockShox
Paragon Gold RL, FS-PARG-RL-A1, RockShox. The heart of Paragon Gold RL lies in its ability to take the edge off both road and trail with a 700c trekking design. With the proven Motion Control™...