At the end i think it is imposible to fit TVA scenes with the MCU timeline, however, i have a thought (even if there's been 7 LOL)
Loki starts at Time Heist day (October 16th, 2023, according to the MCU Wiki) episode 3 begins that day but ends at the next (October 17th), since Loki and Sylvie were to much time on Lamentis, then the same thing happens with the Void and 1x05, long time there, another day (October 18th) Loki ends that day and that same day What If...? starts, and then every episode happens one day after the previous one, until 1x07 (October 24th), that same day 1x08 and 1x09 happen
But then, around the same day (about a week after the Blip, but after What If...?) Eternals starts and then it ends 6 days after (about October 30th), i don't have sources, but i think that it's to aproached to the likely timeline order, but IDK man