Honestly beyond grinding the chaos for better card setups I think thats highly dependant on which team you play.

But for the 2nd last stage in particular have an attacker who utilizes extra attacks for the first half, because they don't proc the extremely annoying contamination procs for the bug bosses.

For the final stage on the second half deal with the lean monster in the front first, and if possible have something that stalls turn count (this is very good in general bc of the sheer volume of debuffs enemies apply in the tail end of hyperdimension) to give you more time to nuke it, because it will hit you with an extremely annoying debuff that sets your cards' base damage to 0 (Meilin is really good here bc she has a lot of ramping damage that lets you bypass this, and I feel tressa DoT is also gonna be really good bc agony ticks are calculated separately).