I am not certain how much longer Parler may be a viable option but I do keep these around. For secure direct messaging I use Wickr Me; there is also a full-feature web application of Wickr for collaboration as a Skype/Teams/Zoom alternative. Rumble is up-and-coming as a decent jewtube replacement; although I would say it still needs some refinement. For jewgle and outlook; I use outlook for work as that's the platform they default to. for personal mail moving beyond gmail, there is mailfence, and I also use for personal email as well as my business Hushmail; but as things turn more and more totalitarian in parts of the EU, I may scrap hushmail altogether.