Mics I use (or have used) for chatting and ASMR. Choose the one(s) that fit your needs!
Most ASMRtists I watch use an audio interface with XLR.
In addition to your voice, there are many household objects, materials, and sensory toys you can use for ASMR. Here are some of my favorites!
Having a PC that can handle your load while running quietly is extremely important for ASMR streams and recording, especially if you plan on doing ASMR gaming!
As a VTuber, VR with a 3D model is a great opportunity to incorporate visual ASMR into your streams. More of a nice-to-have than an essential.