For sure go for the 990-N. Check with your state to see what they require.
Nothing special to e-file it, there's a 887-EO form. The only pain is there's 2 different sections on that, and I never remember, year to year, which one to use until ATX tells me I used the wrong one, lol.
In 2025, you'll still hopefully be able to file the 990-EZ. It's work, but nothing too complex. Breaking up the income into different categories, and there's a section where you describe the different programs/activities, and give a total of the expenses for each. Just take a look at the first couple pages of the EZ and you'll see what I mean, it's really not bad if you're keeping the books for them.