New to crypto, loving Solana so far, but don’t want to go all in in one coin.

As the title says, I'm just barely dipping my toes in the water. A week ago I didn't even know where to begin. Today, I've 10 SOL staked on my Solflare wallet, and just an hour ago I was able to do my first DEX swap. I'm loving learning about crypto, and I feel there is still so much more to learn.

I'm investing weekly, doing a 40/40/20 split between BTC/SOL/small cap coins like Pyth, HNT, and some memecoins as well.

However, I seem to be going in too deep into the Solana ecosystem and I would like to diversify a tad more. I heard Ethereum has high gas fees and that you need to do some L2 shenanigans to bypass all that. I'm not at that level yet, and it all sounds so clunky from a layman perspective, so for now, I'm not delving into Ethereum as of yet, but I intend to in the future.

What are some other promising projects out there? The two that caught my attention were Cardano and Cosmos.