Bought 5 ETH whats next?

Simply purchased 5 ETH (~29okay €) and now I’m excited about what so as to add next to my portfolio. In the meanwhile I hold ~30okay USDC and ~6 ETH, complete round 60okay in crypto. My plan is to slowly improve exposure as much as 200–300okay, however I don’t need to danger putting all the things solely into ETH. I’m considering whether it is sensible to buy some BTC as a extra secure long-term base, or diversify into altcoins like LINK, SOL, AVAX, HBAR or perhaps even newer tasks with potential. At the similar time, I'm wondering if staking USDC for 5–12% yield is well worth the danger in comparison with simply retaining it liquid for purchasing dips. I’m aiming for a 1–3 yr horizon, so I would like progress but in addition some security. What would you advocate as the subsequent step in my state of affairs?