1. BTC
2. BTC
3. BTC
4. BTC
5. BTC
You can see how the second largest coin ethereum has been. It is far from getting to all-time high right now. Also most of the coins are pumped, dumped, left for another new coins when they become old. I do not have investment plan for altcoins in long term.
Yeah, of course, BTC is the best. But you have to consider that if you invest $100 in BTC, even if it goes to $300K, you'll only have $300. However, if you invest $100 in tokens like BRETT, FLOKI, or PEPE when they have "8 zeros" and they lose 2-3 zeros, you could earn significantly more.
Of course, BTC is safer, but unless you're investing a large amount right now, given its price, your earnings will likely be minimal.
Safe, but low.