The closest thing to a VB6 experience that isn't "dead" or in maintenance mode seems to be C# though VB.Net is still an option. There is always C++ of course but that's even less like developing VB programs.

You can also find other recent lists, like: These are the programming languages Microsoft uses. That doesn't answer the same question and it's somebody's opinions, but I'm not sure what else can be said.

For a 3rd party alternative with a language closer to VB6 there is always B4J and its siblings that target IoT and phone-OS devices. Stable products with a track record and an active community.

I wouldn't give that "twin basic" thing much credence. Outside its hard-shelled echo chamber it doesn't exist. Sounds more like another QuickBasic cloning attempt to me. We already have Horse Basic, er, FreeBASIC if we wanted that.