Love Poison (2019)

The stories are not similar but they are both Thai BL series from the same company (Gr8digit) and they aired on WeTV the same year.

Love Poison and Love Poison 2 - Prequel/Sequel.
It's not strictly necessary to watch both, subtitles are a bit hard to find for season 1, but you can still enjoy season 2 easily with ENG SUB on WeTV.

Both...

- Follow the chaotic life of a butch of teenagers.

- Are set in Isan's countryside and are heavily influence by its culture.

- Have LGBT+ characters and a gay romance.

- Have dance numbers.

- Share some actors.

Thai BL series. The stories are very different, Love Poison relies more in comedy than drama, however both BL series take place in Northeastern Thailand and some or all characters speak Isan dialect.

Thai BL dramas coming from the same company (Gr8digit) both share part of the cast, the characters come from northeastern Thailand and speak Isan dialect for the most part.

Thai BL series. Both take place in Isaan in very similar locations and the characters speak Thai dialect. Multiple couples.