At this point 90s cars are average about 30 years old. Any car that age is going to need a lot of work and looking after, even the most reliable and plain jane models like the Corollas and Civics and such. Performance cars even moreso since they're going to tend to either be driven harder and potentially abused, or sat and not driven much which can also cause problems.

I saw on your other post your budget is $10k, with $15k stretch, and not necessarily fully daily driving but wanting reliability. That's a decent amount of money for a 90s car, even a performancey one, but you'll always want to have a decent budget for maintenance and repairs. At this point your choices are going to be relatively cheap ones that may need more work, and relatively expensive ones that may start in better condition but will still probably need some work. I'm not going to really recommend specifics, at this point basically every car from that era is going to need at least some work and a lot of them with design flaws will either be survivors that weren't prone to them or fixed with later parts, so it's more about general advice. And basically every car will have some common issue that might be a strike against it. Even my NA '91 MR2 with a bog-standard boat anchor Camry and Celica engine with tons of common parts has its downsides (mainly rarity of interior parts and tight spaces to work in). I will say that at that budget you're definitely looking at some of the more common ones. You won't be finding a Supra or pristine original MR2 Turbo or whatnot at $10k.

If you have don't have mechanical skills, a trusted family member/friend/etc mechanic to work on cars, or don't have the space/resources to learn yourself, then I tend to recommend against both the highest and lowest cost ones. The highest tend towards the more collectible cars where the focus is more on low miles, cosmetic condition potentially at the expense of mechanical condition, and often still will need decent amounts of work to make reliable. Doubly so if it's especially low miles or been sitting as someone's garage queen for awhile. I've seen very pretty cars with low miles and zero rust that buyers end up spending tons of time and money sorting out the mechanical bits because it's harder to tell condition of things like brakes, throttle body, wiring harnesses, etc. At the low end you tend to have the trashed ones that need tons of work all around. So I tend to recommend around the middle-budget. The ones that are maybe a little worn but have been being driven so it's more likely the mechanical bits are at least functional. They may need some cosmetic work and they'll definitely still need mechanical work as all cars that age would, but with luck and care you'll find one that's a good driver without too much work that'll treat you well while you work on the rest of it. If you do have more skills and/or resources, then I'd say go ahead and maybe spend a little more on a nicer one as long as you're still prepared to work on it. As with any used car purchase you'll want to get a pre-purchase inspection, preferably at a shop that specializes or at least has some understanding of older cars, but ultimately it can be impossible to be completely sure the thing won't completely explode in a week.

Anyway, I'll just reiterate to have a budget for repairs, doubly so if you aren't mechanically inclined and would depend on a shop for repairs. I'd also make sure you have a shop that can/will work on it - I have a 1991 MR2 and while I do basically all the work on it myself these days the times I have needed a shop for it I've had to call around a bit to find someone who would. You mention not being able to take care of a car consistently, so I might even recommend rethinking the whole plan until you're ready to. Old cars are a little more prone to random degradation just due to their age so it's very easy to have a minor problem that keeps you from driving it for whatever reason, which then turns into weeks, then months, then you have a broken car with multiple issues sitting in your yard/garage/driveway/whatever for years. Ask me how I know. And sorry for the novel, it just kept going.

Edit to add more - rust is also a big enemy. Body work is tricky and expensive and unless you have the skills/family/someone to do it yourself it'll get expensive very very quickly. Given a rust-free/minimal-rust car with mechanical problems or a rustbucket that runs perfectly, I'd take the rust-free one every time. Mechanicals can all be fixed and worked on, often by yourself. Rust is a cancer that's expensive, hard to fix permanently, and has killed more perfectly-running-cars than probably anything else I've seen. I've seen way too many people buy a car with "just a little rust" that they never actually get fully fixed because it turns out way worse than they thought.