Nicehash vs nanopool mining

Hello i am new to cryptocurrency and i have seen that equihash for mining zcash is a very good set-up for mining with my gtx970, and i am thinking that with the profit i make, building a mining pc.

My question here is about wich pool or method is better or more profitable while mining. Currently i am mining for Nicehash, generating about 250Sols/s, 80$/month. Will it be better to switch to nanopool(more profit)? Or to another pool? Is it even possible to mine without a pool? Maybe is another coin better for my card?

Thank you for reading, looking fordware to your answers :slight_smile: