Aokana is highly, highly recommended by me. Of course it's missing adult content, but there is a lot of story, and I don't think those scenes are necessary. Highly recommended for $15. If Steins;Gate Elite goes on sale (not now), I recommend that highly too. The others very recommended (though I haven't fully beaten) are Clannad and Clannad: Side Stories, both not on sale. Another one which had an excellent story, if maybe a bit too many loose ends, is Root Double -Before Crime * After Days- Xtend Edition (not on sale). This one reminded me a lot of Ever 17 and was engaging and had great characters. Also Danganronpa Decadence (all 3 games plus an extra gacha board game thing) in physical form is a lot of value. The 3 games are worth getting. Lastly for one more on sale there is a great pack of the Ace Attorney Trilogy and the Great Ace Attorney 2 for their best price.
I've named a good amount of the more famous and good Switch visual novels. Some like Steins;Gate 0 (haven't played) and the Grisaia trilogy (I feel the adult 18+ experience adds to the game, and can't imagine an all ages version), may be worth picking up when they're on sale too. Also forgot Little Busters! Converted Edition, which has the very good Little Busters in it (not on sale). Quite a good game, but wasn't as amazed as some. Still haven't finished every route yet, but I've played about 30 hours. Hopefully this helps others and many of these are on PSN as well. For sale items Aokana is the must buy and the Ace Attorney games (haven't played them all) are high recommendations.
Also Steam has quite a few great VNs on sale as well as JAST USA/Mangagamer (NSFW storefronts). I've played just about all of them from NekoNyan soft, Sekai Project, JAST USA, and some others. If you have a question just ask.