Lavaboom closed. Do you know any service similar to Tutanota and ProtonMail?

I loved Lavaboom
One day I woke up as if nothing, and suddenly bad news appeared on my Twitter.

Lavaboom announced the closure of its service.
I left me. :hammer:

And now what shall I do? -I was wondering

Well, because until today I could not find a service similar to Lavaboom.
I found out there to Tutanota and ProtonMail
But I want to know if there are more options

I would appreciate a lot if help me :)