Yeah, any K-series is going to require a lot of aftermarket parts in order to put it into any pre-2001 Civic chassis.
Engines that will go in easiest will be D-series, B-series and H-series engines.
Your current engine should be a D16Y8 (1.6L SOHC VTEC) with about 128 hp, 107 lb-ft. So putting any SOHC in won't really yield any gains in power, so might as well skip going over any SOHC (D-series) engines.
X##X format refers to a Japanese engine 99.99999999% of the time (I think there is one Accord that has a "US" style engine code).
X##X# format refers to any US engine OR many engines from all over the rest of the world. Sometimes you might need to Google those engine codes and sometimes there's even codes that people will swear aren't real (like B18C3 for example), but are just an obscure European version of an engine we get here, for example.
Here are some specific engines:
B16A (1.6L DOHC VTEC)
Japanese engine from an EK4 hatch/sedan (OBD2) or several other vehicles. Has 160-170 hp, about 111 lb-ft. OBD0, OBD1, OBD2.
B16A2 (1.6L DOHC VTEC)
1999-2000 EM1 coupe (Civic Si in the US) engine. Also is found in a few SiR/VTi (EK4) coupes, sedans and hatches in other parts of the word. The lack of a VIN tag should tell you it's not US (unless it's been removed) Has about 160 hp, about 111 lb-ft. OBD2.
B16A3 (1.6L DOHC VTEC)
1994-1995 del Sol VTEC (US) engine. Has about 160 hp, 111 lb-ft. OBD1.
B16B (1.6L DOHC VTEC)
1997-2000 Civic Type R (Japan) engine. Has about 185 hp. OBD2.
B18B (1.8L DOHC)
1994-2001 Integra LS/GS/RS engine. Has about 145 hp.
B18C (1.8L DOHC VTEC)
Japanese versions of the following two engines. Has slightly (about 10 more) higher horsepower than US counterparts.
B18C1 (1.8L DOHC VTEC)
1994-2001 Integra GSR engine (US). Has about 170 hp.
B18C5 (1.8L DOHC VTEC)
1997-2001 Integra Type R engine (US). Has about 195 hp.
B20B (2.0L DOHC)
CRV engine. About the same horsepower as an LS engine, but with more torque.
B20Z (2.0L DOHC)
See above. (Slightly different, has different compression.)
H22 (2.2L DOHC and 2.2L DOHC VTEC)
Prelude engines. I don't know much about these, so you're going to need to use the powers of Google to find out more.
D-series transmissions fit D-series engines. B-series transmissions fit B-series engines. H-series transmissions fit H-series (and F-series IIRC, but like I said, I don't know a lot about them).
Anyway, that's all off the top of my head and I've got a lot going on right now, so do your own research elsewhere before you decide based on any of the above.
you obviously dont know what your doing so i would just stop. your better off paying someone to work on your car for you.
Like got traction mentioned, I would just research what you want and make a list for now. I wouldn't go around buying parts or trying to make things work quite yet. That's the way that you end up with a car that is totally f**ked up, sometimes beyond anything a normal person (or even normal car enthusiast) would want to repair.
I've been into Hondas for the past seven years or more and I still haven't done a swap on my own. If I were I'd be sure I have plenty of time to let the car sit and get messed with. It wouldn't be a weekend thing since I'd want to double check everything since it'd be a first for me.
If you want it to come out right, I'd encourage you to find someone else who understands Honda swaps a bit better than you. It's better to pay a little now compared with a lot later.