With proper caching even a $5 DO droplet would be easily able to handle this load. With caching + cdn you should be able to handle virtually any load. I personally run cloudfront in front of all of my WP sites, even the low traffic ones because the costs are negligible.
I agree that DO would handle the load. The con is that it costs 5$+tax. Where as netlify is free and CDN and caching is taken care by netlify. Saves time
