Found 2 exchanges where 0G is traded for EUR. According to the data on 28 August the most optimal price to exchange 0G for EUR is €0.147 for 1 0G. This rate is fixed at Kraken at the maximum trading volume of the pair 0G/EUR - 46.9 ths. EUR.
The maximum daily trading volume is observed in the 0G/KRW trading pair at Upbit and reaches € 482 091.12 (0.0574% of the exchange's total trading volumes) at the price € 0.141 per 1 0G.
The minimum price to buy 0G for EUR is 0.137 - on the exchange Bitvavo.
The maximum price to buy 0G/EUR is 0.147 - on the exchange Kraken.