Hi @ajk1,
VeChain (VET) is not supported by Trezor but SHIBA is an ERC-20 Ethereum token and is supported by both Trezor devices and Trezor Suite. All other ERC-20 tokens are supported in the same way.
See here how to add SHIBA or other ERC-20 tokens:
How to use ERC20 tokens in Trezor Suite - Video Tutorials - Trezor Forum