Simpleledger.cash Simple Ledger Protocol (SLP)
Wormhole.cash Bitcoin Cash Smart Contract (WHC)
Cryptonized.cash Color your Bitcoin Cash (CC)
Keoken Assets and smart contracts (testnet only, for now)
Counterparty.cash Counterparty protocol ported for Bitcoin Cash
BitcoinToken See also: Tokenized.cash (Tokenized Protocol)BCH Group Tokenization Proposal (synopsis) by Andrew Stone
GROUP Tokenization (full) by Andrew Stone
CashTokens (more info at Contract-Validated Tokens and Hashed Witnesses)
Other possibilities include:
Honeybadger Information not yet available
Tokeda by Joannes Vermorel
EPOBC / ChromaWay Encoding colored coin transfers within Bitcoin transactions
Open Assets Allows issuance and transfer of user-created assets