I use Mission Covenant Helper, you have to pick your own teams but it will give you an indication of how successful the mission is likely to be and will re-order the combination you’ve put in to be more effective.
I personally didn’t get on with Venture Plan, and it’s no longer maintained by the original creator/writer.
Without CMH I wouldn’t be able to do any missions. I’ve gone from the second worst Covenant (Venthyr) to the worst (Kyrian). Thanks to CMH I got all my missions done on Venth and levelled all my companions to 60.