Had a look through the list above.

abucoins: ?
bittrex: https://support.bittrex.com/hc/en-us/requests/new?ticket_form_id=114093958872
bleutrade: ?
c-cex: https://www.c-cex.com/?id=vote
coinexchange: Unlikely. https://coinexchangeio.freshdesk.com/support/solutions/articles/9000132415-coin-removal-policy
cryptopia: 5m DOT ($90k) fee. https://www.cryptopia.co.nz/Paytopia
etherdelta: Ethereum based only
exmo: ?
exx: ?
gateio: perhaps contact @gate_io
hitbtc: https://hitbtc.com/add-token
kucoin: ?
liqui: ?
livecoin: support@livecoin.net
poloniex: https://poloniex.com/coinRequest
quoinex: Unlikely as just just BTC, ETH and a few others
Ttidex: hello@tidex.com