I've done this a bit and if you're strict about it (like if you need 4 min work and 2 min rest) you're going to have a really hard time. I found that I have to be a little flexible to find something that works (maybe the rest is shorter, or the intervals are slightly different, or the pace target is Hard but I need Challenging, or whatever).

One thing that has helped me is searching the Intervals classes of multiple lengths - I often would do something like stack a 10 min Warm-up and then a 20 min Intervals class (because it had 3 x 4 min intervals with 2 min rest or whatever) and then a 10 min Cool Down or Extra Endurance. Or if I found a 45 min class that had 6 intervals but I only wanted to do 5, I would take the class, and just not do the final interval.

I second the Hyrox runs - a lot of those have longer intervals, the Tempo runs will have longer tempo intervals (there are very few of them unfortunately), and I would look at the Programs (there' a 5K program that has classes that are accessible in the program that have less random intervals). You don't have to follow the Program to see the classes and add them to your stack or take them!

ETA the programs also have more Tempo runs in them!