Spinning and weight sessions

[Lucban]

Hi guys. How can I bring spin classes into my workout routine? I do 2 lower body workouts and 2 upper body workout a week. I'm not sure if I should do a spin class the same day as my workout or completely different day. I wanna try to do 2/3 spin classes a week. I wanna know what's the best routine.
Can anyone help?

Thank you

I used to do body con then spin one day then spin then legs bums tums the next day. I think I preferred doing the strength then spin. I was warmed up and if got it out the way.

I then switched to more intense heavy workouts and quit the spin!