Which seats do you think the Republicans will pick up in 2022 in the Senate? The only 2016 races where the Democrat won narrowly in 2016 were Nevada and New Hampshire. I don’t know if Pennsylvania can be considered safe for the Republicans in 2022 (currently held by Toomey).
Georgia, Nevada, and New Hampshire. Also keep in mind that the People's Party is going to be a big factor in 2022 and 2024. Check on the web about it but keep it on the hush hush for now.