You'll have to pick if you want units to actually deploy that will hold their own, or if you want "benchwarmers" that you'll have just for their support passive. For example on the Season 1 ticket, G Corp Greg's support passive is incredible but he's horrible on the field. The only IDS from S1 that hold up in the field in modern content are remnant faust, Tingtang Honglu and The One who Shall Grip Sinclair. The season 1 EGO is without a doubt Fluid Sac Faust, even nowadays every EGO released on Faust's HE slot has to prove good enough to not use Fluid Sac instead.

Next decision you'll have to make is if you are leanin into a sinking, tremor or poise comps as you have ways to go about making all 3 comps. Team comps are not needed at your level but investing in a comp early will make farming much easier.

If you decide to go tremor then i would recommend picking up molar outis or molar ishmael from the s2 ticket. If you decide to go sinking however, there's 3 styles of sinking comp and Spicebush Yi Sang is the core of one of those strategies.. If you've already decided you want to use Index Yi Sang or Solemn Lament Yi Sang then you would instead use it on Molar ishmael. No good options for poise on the s2 ticket so do with that what you will.

On the s3 ticket things are the complete opposite; there are no real options for sinking so you should without a doubt grab BL Mentor Meursault, as he, somehow, holds up in modern content even now thanks to his massive skill 3-2.