Here are some things you'll need to determine and, in many cases, arrive at a compromise that works for you:
1. Weight capacity of tripod
and head. How heavy is the heaviest gear you plan to use on it? Double or triple that, for best stability.
2. Weight of the tripod itself is sort of the corollary of it's capacity and size.
3. Working height. How tall do you need? Keep in mind that the head and camera itself add to tripod's height, and for best stability that it's best to not need to use a center column.
4. How compact do you need it to be for transport? The opposite of working height... also effected by the number of leg sections and the way the legs fold.
5. As few leg sections as possible for best stability. More sections means the lowest ones need to be fairly small diameter.
6. Leg locks. There are three types: lever, thumbscrew and twist. Twist are low profile and self-adjusting for wear. Lever type are the fastest to use.
7. Materials: carbon fiber has the best weight to strength ratio, plus it absorbs some vibrations that metal tripods transmit. But CF is more expensive than aluminum.
8. Cost: A lot of folks spend too little on a tripod and end up replacing it often, actually end up spending more than if they'd bought a better one to begin with.
9. A higher quality, more expensive tripod might last a lifetime and be more pleasurable to use, so may be more likely that you'll actually carry and use it.
10. Special features: some tripods have a removable leg to use as a monopod. Others have a center column that can rotate to horizontal or beyond for low level work.
11. More moving parts and special features might make for more wear and tear, add'l locks to remember to tighten, and may compromise stability.
12. Repairability. Are replacement parts available, if needed? Similarly, are accessories available to customize the tripod for your particular uses.
13. Separately purchasing leg set, head and any accessories lets you tailor the tripod to your needs. But, kits that include head, leg set and more can be better priced.
14. Head type: tilt-pan, fluid, ballhead. Tilt-pan generally are the more flexible, but most have protruding handles. Ballheads are the most compact. Fluid are have & used for video.
15. Quick release system: If you want to use a QR system, you'll may need to purchase additional plates for other cameras and lenses.
16. The Arca-Swiss QR system is the most universal... many manufacturers make heads, plates, etc. using it. Other QR systems are proprietary and may be more limiting.
B&H Photo has a good article and recommendations of travel tripods.
https://www.bhphotovideo.com/explora/photography/buying-guide/travel-tripods Those tend to be lighter weight and more compact. Just be sure that the load capacity, working height and other factors are all things you can live with.
Personally I use three Gitzo "Series-3 Systematic" tripods. The "Systematic" series can be customized a number of ways. One of mine is set up for general purpose w/ballhead and a gimbal adapter, another for very low level macro or very high overhead work and the third is "big telephoto" dedicated, with a full size gimbal head. Even though they're carbon fiber, these are heavier than you'll need or want. But some of the gear I put on them weighs 10 or 12 lbs. If interested in Gitzo, I'd recommend that you look at the Series-2 if stability is a big concern... Or, check out Series-1 if light weight is your bigger concern and you can compromise a bit on stability. Gitzo "Traveler" and "Reporter" series are less customizable and rely more on a center column for adequate working height than the Systematics do.