With Cryptopia now being gone, we only have one option. We need to add more exchanges Dev. This is extremely important to keep the coin alive.
I remember this exact same thing happened to dnotes in 2017 after they got delisted from Poloniex. But dnotes immediately got them listed on Mercatox and Stex (known as stocks.exchange at that time). I know that the exchanges fees usually goes from the devs pocket and I can understand that. You can try crowdfunding to make this happen and hopefully the loyal community members will help you to achieve this. Here are few exchanges along with their fees:

1. Crex24 (0.25 btc) - I've tried this exchange and it does have low volume. However I can tell that they aren't faking their volume and it by considering all the features, design etc, their volume will only get better with time.

2. Graviex (0.5 btc)

3. Coinroom (1 btc)

4. Stex (1.3 btc for BTC, ETH and LTC markets or 1.1 btc for only BTC and ETH market) - This exchange has been gaining a lot of popularity for the last 5 months or so. Since they've rebranded to Stex, their volume has also been rising.

5. Mercatox (1.4 btc) As I previously mentioned about dnotes, 90% of their daily volume is coming from mercatox which is around 70-80K usd.

6. Latoken (2 BTC) - New exchange with high volume (obviously high percentage of this volume is fake) but this exchange has been doing great for few months.

Even if we only add Crex24 for now which is 0.25 btc and hopefully mercatox and stex after few months, we should be good.