The best approach for the Jays may be to give Bo and Vlad more than they would likely get at arb and buy out 2 FA years. This assumes at least one has no interest in a long term deal.
5 year deal 2024 through 2028. No idea what they are estimated to get at arb, but increase on the estimate by 5-6 million a year and maybe they will agree to include 2 FA years in the deal.
Extend the window before they high free agency.
edit - they would still be 29 (Vlad) and 30 (Bo) when the deal expires, still young enough to get a megadeal.