There is no magic bullet
Ways to eliminate the MAGI impact on the cost of health insurance:
Starting in 2019 there is no individual mandate with the ACA, so in theory you can buy an HDHP again.
At age 65 you qualify for Medicare, so no MAGI dependency there either.
You could move overseas for a time.
If you qualify, you could join a health care sharing ministry.
RMDs aren't such a big deal right away... starting at about ~4% at age 70.5, hitting 5% at age 80, and then ramping up thereafter. All Medicare years. Average life expectancy is ~80