anyone can recommends what is the best combo amp for guitar
with good sound and built in effect?
"Your sound is in your hands as much as anything. It's the way you pick, and the way you hold the guitar, more than it is the amp or the guitar you use." -- Stevie Ray Vaughan

"Anybody can play. The note is only 20 percent. The attitude of the motherfucker who plays it is 80 percent." -- Miles Davis

Guthrie on tone: https://www.youtube.com/watch?v=zmohdG9lLqY
Fully Loaded Mesa Boogie Mark IIC+ Combo. The Effect is has is blowing the mind of everyone who plays it. That and reverb.
Try again in the GG&A forum, and give us some actual information to work with. There's a thread there with some questions to get you started.