Do more research in to XSPEC, I would drop that first from your list.
Had a dev breakup, original dev was full of it, no concept or approach to stealth staking as of now either.

Been forked/split now with disputes between the old dev and team, it has a chance in the future but I wouldn't bank on it.

I like your view on Holo, will be buying this if it dips some more, bit wary after the recent pump

You have to believe in BTC, the whole market is tied to it, but I rather invest in alts than hold BTC, I swap based on movements, agree on Ripple though.

also not a fan of Verge of Tron, ADA is ok.

Agree with XBY being a scam, did a little research in to it awhile ago, 1 dev claiming the world with little github commits

Your approach seems ok, would look at a combo of mid and high risk though over just high risk, I've had "mid risk" coins outperform the rest.