A lot of blind kids love light up toys- if they have any light perception (which is actually pretty common) they are often drawn to them. Prevailandbraillemama on Instagram has a lot of posts about toys her kids love- maybe check that out?

Check out Maxi Aids. It can give you an idea of the types of toys to get if they are out of stock on something.

https://www.maxiaids.com/toys

I would definitely recommend you get them some fun sensory toys. You best bet will probably be any chewy toy so he can hold it and investigate it with his mouth. Plus since he is under a year all babies use their mouth as a main way of investigating something. I’ll link a cute necklace I found. Really any sensory toy is a great gift though as they grow!

Here’s a cute $1

I'd agree with the multi-sensory baby toys. My daughter (sighted) had a plush cow with all sorts of interesting tactile and auditory parts. The ears had some sort of crinkle layer that crackled when handled or chewed. There were fuzzy parts, silky parts, loops to hold on to. Definitely her favorite toy up to year one and a bit beyond.

https://www.amazon.com/Lamaze-Franky-The-Hanky-Whale/dp/B009Z4WJ1K

https://www.amazon.com/LAMAZE-L27024A-Lamaze-Freddie-Firefly/dp/B000I2Q0F4

https://www.amazon.com/Lamaze-Bitty-Bite-Bug-Rattle/dp/B003HS5JSA

https://www.amazon.com/LAMAZE-L27014A1-Lamaze-Mortimer-Moose/dp/B000I2MRLU

Something like these can be fun for him. A lot of the LAMAZE toys fit the bill. They have different tactile sensations, and make different noises, and are kid safe.

I had a toy sound guitar at one point and stuff like that, maybe musical toys?