both are crime action dramas with similar vibes.
we have the secret organization going after criminals who are typically above the law and a anti-hero esque male lead.
Fukushi Sota in both dramas.

Both have fleshed out female protagonists who are not reliant on men; if a damsel is in distress another damsel will help her. Although Kakekomi is historical they share some similar themes

both are detective drama parodies. They reference cult detective dramas and make fun of the cliché and typical character archetypes.

both dramas are family comedy/drama with similar vibes. Also Nishida Toshiyuki plays the father in both.

both written by Kudo Kankuro, both involving traditional Japanese forms of entertainment (noh, rakugo) and featuring same actors (Nagase Tomoya, Nishida Toshiyuki and Kiritani Kenta)

Ensemble cast of hilarious characters with messy relationships. Some characters work at a TV station so there are a lot of spoofs about drama production.

both are funny and entertaining dramas about a team of scammers with a female lead that's always one step ahead and a gullible sidekick

Gangs, motorcycles, friendship, and fighting. They have similar themes and vibe going on. Also yamada yuki is there playing a delinquent.

both are about food preparation using mostly stuff you find growing around you. Little Forest is filmed in rural Japan and pretty mush 100% food porn while Evergreen Love is in the city and has a romantic plot

two strangers start cohabitating . The characters go through a change of their eating habits from fast food to 'slow' food, while we learn a bit about plants. Evergreen love is romantic while Bittersweet is about friendship

Buddy cop dramas with a veteran and a rookie. Similar characteristics like the older one is childish and the younger tries to be serious. Lots of bickering.

both are directed by Shunji Iwai so they have similar melancholy feel and aesthetic. main characters share some character traits and themes about loneliness and human connection.