Suggestions for cheap 050 VoIP alternatives?

I used Skype Number to get a 050 number and very cheap phone calls within japan. I loved it… until it was discontinued and lost all my credit.
Then I used LaLa Call, but now is ending service next year.
I tried to search other economical 050 providers, but either are business oriented (and priced), or are also shutting down (050plus, smarttalk, etc…)

Does anyone know any good 050 app voip provider that has low monthly fee and is not about to close soon? The ones still ongoing are too expensive, I mean, whats the point of having a 050 number with all its limitations for 3000y/month when you can get a regular 080/090 number with most MVNO for less than 2000y?

I need a phone number that is app based and can call/be called from any land or mobile phoneline. *Cant be esim (I already have 2 sims on my phone and cant add another esim)