BTC can't do 100x or 1000x anymore.
Technically, that's true because Bitcoin is done with that and we might just get a one-digit gain but with its price now, that's still a lot.
ALT can. But which one?
This is why many are hunting for the new projects and most of them are meme coins that could get that much gain. But be careful with that, I'll still go with Bitcoin in terms of gains.
I don't know what few digits you mean, yes it may not give 100x profits but I think everyone should be much convenient with whatever profit they make from investing. There are many strategies applied when investing, if not okay with purchasing lump sum or DCAing then kindly wait for the big DIP like the one that happened seeing Bitcoin fell to $20k ,compared to the price now and future ATH, one will make a very nice profit.