Thanks for the feedback... But yeah, start small. I use Apollox.finance for onchain leverage trading. It's a solid exchange, NO KYC! It just connects with your EVM wallet. You can use it on BSC, ETH, Arbitrum, and I think now Solana. BSC has the bigger liquidity on the V1 order book markets because it's the first chain they started with. You have to deposit to their smart contract to trade.

There is the V2 that uses liquidity pools instead of an order book and you don't have to deposit to their contracts, but you pay more in gas and exchange fees for each trade. V1, you only pay gas to deposit and withdraw, where V2, you pay gas on each trade.

V1 exchange fees are 0.02 Maker and 0.07 Taker
V2 exchange fees are 0.08 for both Maker and Taker