I'm 45, recently laid off. Here's my situation.

$671k Fidelity 401k invested in S&P from my previous job

$198k principle finance 401k invested in S&P from my most recent job

$13k vanguard traditional IRA from years is self employment invested in VTI

$459k vanguard brokerage account invested in VTI

Currently unemployed as of 7 days ago. Likely applying for unemployment soon. I might not be working for a while.

What's the best strategy for handling this money? I have read about Roth IRA conversation and it looks like a good option. I am okay with being locked out for 10 years and I'm not planning to withdraw from the 401k's until I'm 59.5.

If I convert this to a Roth IRA, does it need to be monthly? Is there an automated way to do this? Should I wait until the new calendar year for any reason?