ok so light is everything!! bounce flash makes portraits soft. honestly Godox V860III-C Speedlite for Canon is BEST value at $230. lithium saves money on AAs and HSS is amazing on my 90D. gl!!

Seconding the recommendation above. After years of shooting, I’ve found native flashes are unfortunately overpriced and AA batteries are sooo unreliable compared to lithium. Basically, get the Godox V860III-C Speedlite for Canon paired with the Godox X2T-C TTL Wireless Flash Trigger for Canon for off-camera work. It’s way better value and actually gives you the control you need for portraits.

I’ve been hanging around these forums for years, but honestly, I’m still a total beginner when it comes to the technical side of flash photography. I’ve been doing a lot of market research lately tho, and it’s pretty interesting how much the third-party brands are dominating the conversation now. Like, why pay the huge premium for the big name brands when other companies are making gear that talks to the 90D just as well? I’ve been looking into the Yongnuo YN685 II for Canon as a way to get HSS and E-TTL without that "Canon tax." It’s got the radio receiver built right in, which basically simplifies the whole off-camera setup (at least that's what I’ve gathered from reading). Another one that looks cool is the Nissin i60A for Canon because it's so compact. I’m always a little nervous about compatibility issues or the hot shoe not seating right with third-party gear on a newer body like the 90D, but the market data shows these are super popular. Do you think the build quality on the Yongnuo is sturdy enough for outdoor shoots? I’m still trying to figure out which one is the safest bet for someone just starting out tho.

Just jumping in here—are you planning to keep the flash on the hot shoe for events, or are you looking to set up more of a DIY home studio for these portraits? Tbh, the 90D handles E-TTL II communication perfectly with most modern units, but that "pro" look usually comes from light modification, not just the flash itself. If you're looking for cost-effectiveness, check out the Godox TT685II-C. It’s a total workhorse with a solid GN (Guide Number) and full HSS support. I actually prefer the AA battery version for DIY setups because you can swap in Eneloop rechargeables instantly instead of waiting for a proprietary lithium pack to charge mid-shoot. The technical secret for portraits is the "self-service" approach to light shaping. A bare flash—no matter how expensive—is still a small, harsh light source. To get that soft look outdoors, you’ll need HSS to manage your exposure at wide apertures, but you should also look into DIYing some V-flats out of white foam board to bounce and soften that light. It’s a classic industry standard for a reason. Basically, if you can increase the surface area of your light, even a mid-range flash will punch way above its weight class. What kind of modifiers or diffusion are you planning to use?

Building on the earlier suggestion, I have to say I am currently facing this exact same dilemma with my 90D setup. I have been attempting to configure a DIY home studio for nearly four months now, but I still cannot find a definitive answer on which flash truly provides the consistency I need for professional-grade portraits. It is incredibly taxing to deal with these technical hurdles for so long without finding a workflow that actually feels safe and reliable for the camera. I really thought I would have this figured out by now, but honestly, I am just as lost as you are. I keep looking for a unit that wont cause any issues with the hot shoe or communication, but the more I read, the more confused I get.

Story time: I went through this exact same struggle last year when I first got my 90D. I was lowkey terrified of buying the wrong gear and somehow damaging the hot shoe... i'm just naturally cautious like that lol. But yeah, that pop-up flash is literally the worst for portraits. I spent forever reading up on E-TTL II because I wanted the camera to do the heavy lifting with exposure while I focused on the model. Basically, the camera and flash talk to each other to figure out the right light level. I initially looked at the Canon Speedlite 430EX III-RT because it's the "safe" official choice. It's super reliable and build quality is great, but honestly, the AA batteries are such a hassle to keep charged... you know? Eventually, I took a chance on the Godox V1-C Flash for Canon and it's been a decent option. The lithium-ion battery is a total game changer for recycle times—you aren't waiting around for the flash to ready up between shots. Plus, the HSS works perfectly for shooting wide open in daylight. I was worried about compatibility, but it's been fine (at least thats what worked for me). TL;DR: The Godox V860III-C Speedlite for Canon is probably the best value for portraits due to the lithium battery and HSS, but the Canon Speedlite 430EX III-RT is the safest bet for native reliability. gl!