I feel safe about Acala, Bifrost and Equilibrium, btw share your thoughts on them as well in the comments
You should tell us why you feel safe with those projects that you have chosen. Honestly, I know nothing about them and I don't have an idea which is good and bad with those projects. That's why if you give info why you think those projects you have chosen are a good option for you, we'll have a reference to what to research first.
And did you hear Equilibrium gives the bonus for registering for their whitelist? Sounds good, but is that true?
Not true or true, it's a common strategy and marketing for projects to attract more registrations and investors.