This Button block for Gutenberg by Atomic block plugin is kind of similar to the default Gutenberg button block. You can set the button text, add the link and adjust the style using the options available.
Prompt visitors to take action with a custom button.Part of: Core Blocks
Place a Marketing Button with small description.Part of: Ultimate Addons for Gutenberg
Prompt visitors to take action with multiple buttons, side by side.Part of: CoBlocks