I don’t think it’ll be a solution many like, but you might consider purposefully cultivating duckweed on the tank surface. It absorbs a little light and takes up a lot of the excess nutrients that algae thrives on. My tanks are now totally algae-free, and that’s after having tried amano shrimp, nerite snails, CO2 injection, and otos. Yep, duckweed… It’s a massive pain and it gets everywhere when you clean the tank, but worth consideration.
And, depending on the plants you buy, maybe you get it without a choice! Other floater plants probably work as well, but duckweed is basically guaranteed to take over.