Recs for Rolling in Madrid vs Barcelona

First tried new years 2023 which was a phenomenal experience.... ever since then, partner and I do it every 3-4 months. Its been amazing here in the US at different circuit parities, festivals, new years etc... we are now looking to expand our horizons to do it in Europe.
We have a trip to Spain coming up - I was wondering:

1. recs for gay bar/clubs best for rolling in madrid & barcelona

2. we never do it more than once every 3-4 months, definitely never two days in a row; would madrid be better or barcelona? we'll be in madrid friday night and barcelona saturday night.

3. checking our bags to take our trusted (and tested) pills with us. or should we get them there and test them (that'll mean taking the testing kit instead of the pill)? how easy will it be to get it there...

Thanks!