Hey Junior,
Welcome to ship modeling.
If you have some experience building already, then there's several options you can choose...here's what I would recommend.
1/72 Revell S-100 Schnellboot - Great kit, decent size, affordable (about $20)
1/350 Spru-Can (Spruance Class) from DML/Dragon/Shanghai : Easy build, affordable at $20-$22.
1/350 Fletcher: Good kit, no fit troubles, but a bit pricey at $25-$32 retail.
If you have any other questions, stop on over to Modelwarships.com and take a look at the models in the gallery. You can see various examples of the models I've mentioned above.
Regards,
Jeff Herne
Modelwarships.com