If you're looking for anime similar to Rinshi!! Ekoda-chan, you might like these titles.
Hakone is a hot spring spirit who descended to a spa resort on Earth. However, with her long slumber, she looks like a little girl on the outside. The high school boy Touya stumbles across her at a hot spring and ends up joining Hakone in retrieving her original powers.
Somera Nonomoto is the strongest NEET who has inherited the invincible “Nonomoto Mahou-ken” from her late mother. The short anime focuses on the daily life of Somera and the people around her.
Through the seasons, the kids of class 5-2 manage to keep themselves entertained, whether they’re searching for summer pill bugs and attempting to find a way to race each other at the pool, or mourning the tragic end to “Leaf Satou-kun” when he falls off the balcony. But while the cold winter snow encourages vicious snowball fights, the warmth of spring brings about a change of pace in everyone... well, almost everyone.