Getting 10x out of BTC, NEO, ADeX and XRP is a tall order in 2 months. I don't see it happening.

BTC is solid for hodling and keeping a stable portfolio at the moment.
Neo is a great choice for a few x gain over a few months, as I see it as a 0.5ETH coin, so around $500 right now.
ADeX is solid too, but XRP I would bail out of. Overhyped and terrible shitcoin IMO.

I'd swap out BTC for DeepBrain Chain (DBC). I see big gains there.
I'd swap out XRP for SpectreCoin (XSPEC). I see big gains there as well.

A portfolio of the following has a decent chance to return 10x in 2 months:
DBC
NEO
ADeX
XSPEC