My personal recommendation of what I list below is A Day Before us. While I typically dislike shorts, it works very well with the format, and episode after episode gave me butterflies just watching it. It's extremely sweet and cute, though as far as comedy is more "cute funny romancey stuff". I'm sure you've seen/heard of most of what I have below, but just filling gaps in case you haven't.

Yeonae Haru Jeon / A Day Before Us - anidb - MAL - AniList - Personal Rating: 10/10

• Very heavy on cute romance. A series of shorts following soon-to-be-lovers as they come to realize what they have between each other. Streaming on Youtube.

Otaku ni Koi wa Muzukashii / Love is Hard for Otaku - anidb - MAL - AniList - Personal rating: 7.6/10

• Primarily comedy. An otaku tries to keep her otaku and fujoshi hobbies a secret at her new workplace, but her past catches up with her when she reunites with an old friend who shares her interests, and they discover more coworkers with similar passions.

Kimi ni Todoke / From Me to You - anidb - MAL - AniList - Personal rating: 9.2/10

• Primarily romance. Kuronuma Sawako, misunderstood because of her ghostly appearance, hopes to make friends and find romance when the popular Kazehaya Shouta starts talking to her.

Horimiya - anidb - MAL - AniList - Personal rating: 8/10

• A bit more drama, good comedy, and cute romance. Hori and Miyamura, both hiding secret lives, cross paths and unveil their true selves, leading to the possibility of something new and unexpected.