I've done extensive bro science research on this.

Strains heavy in these cannabinoids help me manage ADHD: THCv, CBG, CBDv. They have stimulant-like effects, for ADHD and for me, this translates to clarity and focus.

Too much THC without any CBD or other C noid and you will probably be too high/anxious/paranoid to function properly.

THC dominate strains that stand out to me, Durban Poison, Girl Scout Cookies, Skunk #1, White Widow

If the lineage is Diesel or Haze related, there is a good chance it will help me medicate for ADHD symptoms. Sour Diesel, Blue Dream, Trainwreck, Pineapple Express.

Super boof is great too. Not all of these are necessarily high in THCv, terpenes also influence the direction of the high.

Many popular strains have been cross bred so much they are all hybrids which lean one direction or another. Most strains I medicate with are leaning sativa effects. 100% land-race sativas are also great. However, do not ignore indica-dominate strains based on "in-da-couch" rhetoric. Cali Raisin is an example of an Indica with Sativa effects that I adore.

Terpenes I found helpful for ADHD: Limonene, Terpinoline, Caryophyellene, Pinene, Linalool. Which loosely translates into citrus, spice and flowers, clove and spice, pine and earth, lavender.

There are THCv and CBDv dominant strains to look out for. You do lack the entourage effect with these, but they can be great mixers.