Roth Conversion Decision Making Software

Is there a tool or software you recommend when looking at a clients qualified funds and other income to decide how much and when to do conversions to Roth? Looking for a tool that would show a “do nothing plan” and just take RMDs and pay tax as thry come due vs option b which would be active roth conversions which ultimately would save tax in the long run? Clients need to simply see the cost benefit analysis and breakeven points on how much tax they pay over time..