You can do it using probit and binance. For blurt you can send your blurt to probit and the sell it for BTC. Sell the BTC for USDT and send to Binance for P2P trading. Then sell your USDT in the P2P for your euro currency.

For hive, its the same process. Send your hive to probit, sell it for BTC, sell the BTC for USDT, send the USDT to binance and then make a P2P trade for your euro currency.

For hive dollar the same thing. You can either send your hive dollar to probit, sell the hive dollar for hive, sell the hive for BTC, sell the BTC for USDT, send it to Binance and then sell the usdt for yor local currency at P2P...

Or

You can simply sell your hive dollars for hive using the hive market or blocktrades and then follow the procedure above.

The reason why you will sell your BTC to usdt is because of the transfer charge. Sending BTC from one wallet to a other carries much charge than sending USDT.

I would even recommend ripple (XRP) as it has a lower fee than usdt. For USDT you will be charged just 1 usdt for any amount of usdt you send , while for XRP, I'm not sure, but I think it's about 0.2 xrp as fee.

You can as well still do some research, but this is basically how I do mine.

LInks:
https://www.probit.com/en-us/
https://www.binance.com/
https://wallet.hive.blog/market
https://blocktrades.us/en/unregistered_trade/hive/eth

Binance and Probit has an app, so I suggest you use the apps for easier transactions.

Regards.