Best Strength Plan for Foundation Phase for 70.3?

Hi, just finished my recovery 2 weeks from my last 70.3. I plan a couple of 70.3 races for 2022 with my A race scheduled for 10 July 2022. Key focus for next year is faster on the bike (last couple of races; average swim, below average bike and above average run). I believe building strength will be important to improve the times. I have purchased the 2021 Edition Premium IRONMAN 70.3 Level 3 Strength Training Plan (AJ Gregg – 21 Weeks)….although I did not follow it as consistently as I probably should have through the last training cycle. What plan would you recommend for this Foundation Phase?
btw, love your plans, believe they have kept me injury free over the last 4 years through Boston marathons & 70.3s
Thanks, James