I can recommend eth, bnb as well as Polygon. Its true that eth has high fee issue but still its on trending, trustworthy & it has marketcap which is about 5x bigger than bnb! hope eth will find some way to resolve its all issues soon. Beside bnb is still growing & their team has confidence enough to give it a successful future. Probably you already hold bnb and Last one is matic (Polygon), Polygon Ecosystem is well structured & has lots of possibilities that will effect on it to have a bright future.