I certainly do!
Long list incoming! Hopefully you (or someone else reading) will find something you like! Most or all of these should speak pretty clearly.
Probably the most famous one is 弟者 (a word he made up) from the 2bro channel. He’s got a really cool voice, a pretty endearing personality and will sometimes bust out some funny anime-esque phrases like 我が力を見せる時が！ Mostly into shooters, which aren’t really my thing, but I have watched and enjoyed his playthroughs of Machinarium, Abe’s Oddysee, Inside, Little Nightmares and Crypt of the Necrodancer (where he even speaks in sync with the music for extra smooth grooves) among others.
Another sort of big-ish one is LayerQ. He plays a lot of indie games, and I’ve watched among other things his playthroughs of Ori and the Blind Forest, Hollow Knight and Inside.
ToiletPaper Gaming is an oddly named older dude, and I find his ojisan style voice quite endearing. I’ve watched among others his Ori and the Blind Forest videos, but he’s played quite a lot of games, including both the Portal games.
Gongen is another older dude I recently found. His focus is mainly NES and SNES era games, and I find his voice to be particularly calm and easy to understand. I enjoyed his playthroughs of the original Zelda, Metal Gear for the NES among others.
Yumegaki no misogi plays a bunch of RPGs and reads the lines of every character, sometimes quite dramatically! Nice if you want some listening and reading practice combined! I’ve watched her playthrough of the first Suikoden game a few times.
R-Games does kind of the same thing. Has a tendency to mix his voice way down though, which makes him hard to hear… I’ve watched him play FF7.
Some one-off video series I’d also recommend if you’re into these games:
Metroid Zero Mission by Blaze: this was one of the first ones I watched. He speaks in a kind of overly dramatic manner at times which makes him more easy to understand I feel. He also tends to explain things with a bit longer sentences which is good once you’re more comfortable listening!
World of Warcraft by Maelstrom: He’s got a super relaxed voice which makes it easy to chill out to this series I find.
Super Metroid by Honda01.
Cities Skylines by Kiriya. I found this recently and learned a ton of new words for traffic and otherwise city related things! He’s got a bunch of other Cities Skylines series as well, but this is the first. His voice is very similar to that of LayerQ I think.