In general, DSLRs use a mechanical shutter for still photos, so they are usually not the best choice if your goal is specifically to avoid shutter actuations. One community answer notes a few older Nikon models (D40/D50/D70) as exceptions with electronic-shutter behavior, but these are older cameras.

For stop-motion, the bigger priorities are usually:

• full manual exposure and focus
• a stable lens that won’t change on its own
• remote triggering or computer control
• USB/tethered shooting if possible
• live view to reduce mirror movement

Shutter wear is a real specification, but for a camera used on a tripod in a studio, many people would worry more about control and consistency than shutter life. If avoiding a mechanical shutter is your top requirement, mirrorless is the more natural system to investigate. If you stay with DSLR, focus on manual operation, remote capture, and lens stability rather than the shutter alone.