SSD1306 OLED I2C on 5V need to add external memory

In my projects i am using OLED SSD1306 display with Attiny85....I need to use different fonts and there is very tight memory space on those tiny MCU's. I decided to add external memory [24CXX] and install all the fonts there. I know how to do it...the only think i need, as a help, is if someone knows where i can find the design board[the PCB-design] preferable on Kicad to add this memory on the board. The SSS1306 design with I2C communication on 5V [the 4-pins one]

Thank You in advance