If you liked
Wotaku ni Koi wa Muzukashii
|
...then you might like
Futari Ashita mo Sorenari ni
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Both manga focus on adult couples with relationships that are more realistic/normal. Futari Ashita mo Sorenari ni is a slice-of-life where the events are toned down and simple. Wotakoi has more comedy and dramatic events.
If you liked
Ne Ne Ne
|
...then you might like
Totsuidekita Yome ga Aisouwarai Bakari shiteru
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Both series are about a couple who get married due to an arrangement between their families. However, they are lucky and end up with partners that they like. Neither couple has made a move romantically yet, but the reasoning for this is different. Ne Ne Ne is super short if you're looking for a quick read. Totsuidekita Yome ga Aisouwarai Bakari shiteru has 32 chapters at this time and is still ongoing, so there's more time for the author to flush out the relationship, even if it's a super slow burn. I think both series are sweet romances, although some people may have issue with the huge age gap in Ne Ne Ne.