BTC I'll just keep holding. Maybe sell a little bit on larger moves to reload on fiat in case of a dip, but since the fundamentals haven't changed I see no reason to sell larger amounts.

With Bitcoin Gold I assume dumping will already be in full swing before I even get my coins on the exchanges. So I'll probably just watch the markets for 1-2 days until I've made my mind up on how to proceed.

With alts -- those I already have I'll hold until the market improves. However since I'm not 100% convinced that alts will recover all that well, at least short-term, I'm in no hurry to add to my position either.